Minimum Security Standards

The Minimum Security Standards (MSS) are baseline requirements for securing Yale IT Systems. The MSS ensures we build and maintain secure Yale IT Systems based on risk. This is a representation of the complete Minimum Security Standards (MSS). This represents a consolidated list of all Yale's current security requirements. These requirements come from Yale's current security policies, procedures, and practices. To read more about the MSS and how it works, visit cybersecurity.yale.edu/mss. To narrow down the MSS to the requirements for your IT System, use the MSS calculator. The MSS Calculator is located at cybersecurity.yale.edu/mss/calculator. This reflects the streamlined MSS as of 3/15/2023. The purpose of this reorganization was to improve comprehension and reduce redundancy. The requirements in the MSS have not changed. To view details on this change or view the old version of the MSS, see our streamlining the MSS webpage located at cybersecurity.yale.edu/news/streamlining-minimum-security-standards.

YALE-MSS-1: System Classification

YALE-MSS-1.1: Classify the IT System and meet the Minimum Security Standards
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Low Risk Endpoint Required Moderate Risk Endpoint Required High Risk Endpoint Required Low Risk Server Required Moderate Risk Server Required High Risk Server Required Low Risk Mobile Device Required Moderate Risk Mobile Device Required High Risk Mobile Device Required Low Risk Network Printer Required Moderate Risk Network Printer Required High Risk Network Printer Required

YALE-MSS-1.2: Apply any additional security requirements required by external obligations
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Low Risk Endpoint Required Moderate Risk Endpoint Required High Risk Endpoint Required Low Risk Server Required Moderate Risk Server Required High Risk Server Required Low Risk Mobile Device Required Moderate Risk Mobile Device Required High Risk Mobile Device Required Low Risk Network Printer Required Moderate Risk Network Printer Required High Risk Network Printer Required

YALE-MSS-1.3: Ensure appropriate contracts for all third-party relationships are in place
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Low Risk Endpoint Required Moderate Risk Endpoint Required High Risk Endpoint Required Low Risk Server Required Moderate Risk Server Required High Risk Server Required Low Risk Mobile Device Required Moderate Risk Mobile Device Required High Risk Mobile Device Required Low Risk Network Printer Required Moderate Risk Network Printer Required High Risk Network Printer Required

YALE-MSS-1.4: Designate and protect Critical IT Infrastructure
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Low Risk Endpoint Not Required Moderate Risk Endpoint Not Required High Risk Endpoint Not Required Low Risk Server Not Required Moderate Risk Server Not Required High Risk Server Required Low Risk Mobile Device Not Required Moderate Risk Mobile Device Not Required High Risk Mobile Device Not Required Low Risk Network Printer Not Required Moderate Risk Network Printer Not Required High Risk Network Printer Not Required

YALE-MSS-1.5: Plan for data recovery requirements
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Low Risk Endpoint Not Required Moderate Risk Endpoint Not Required High Risk Endpoint Required Low Risk Server Required Moderate Risk Server Required High Risk Server Required Low Risk Mobile Device Not Required Moderate Risk Mobile Device Not Required High Risk Mobile Device Not Required Low Risk Network Printer Not Required Moderate Risk Network Printer Not Required High Risk Network Printer Not Required

YALE-MSS-1.6: Plan for meeting and maintaining the security requirements for the IT System
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Low Risk Endpoint Required Moderate Risk Endpoint Required High Risk Endpoint Required Low Risk Server Required Moderate Risk Server Required High Risk Server Required Low Risk Mobile Device Required Moderate Risk Mobile Device Required High Risk Mobile Device Required Low Risk Network Printer Required Moderate Risk Network Printer Required High Risk Network Printer Required

YALE-MSS-1.7: Complete a Security Planning Assessment (SPA)
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Low Risk Endpoint Not Required Moderate Risk Endpoint Not Required High Risk Endpoint Not Required Low Risk Server Required Moderate Risk Server Required High Risk Server Required Low Risk Mobile Device Not Required Moderate Risk Mobile Device Not Required High Risk Mobile Device Not Required Low Risk Network Printer Not Required Moderate Risk Network Printer Not Required High Risk Network Printer Not Required

YALE-MSS-2: System Inventory

YALE-MSS-2.1: Establish the scope of the IT System
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Low Risk Endpoint Not Required Moderate Risk Endpoint Not Required High Risk Endpoint Not Required Low Risk Server Not Required Moderate Risk Server Required High Risk Server Required Low Risk Mobile Device Not Required Moderate Risk Mobile Device Not Required High Risk Mobile Device Not Required Low Risk Network Printer Not Required Moderate Risk Network Printer Not Required High Risk Network Printer Not Required

YALE-MSS-2.2: Use a private IP address if direct internet access is not required
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Low Risk Endpoint Required Moderate Risk Endpoint Required High Risk Endpoint Required Low Risk Server Required Moderate Risk Server Required High Risk Server Required Low Risk Mobile Device Required Moderate Risk Mobile Device Required High Risk Mobile Device Required Low Risk Network Printer Required Moderate Risk Network Printer Required High Risk Network Printer Required

YALE-MSS-3: Disaster Recovery (DR)

YALE-MSS-3.1: Create a Disaster Recovery Plan
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Low Risk Endpoint Not Required Moderate Risk Endpoint Not Required High Risk Endpoint Not Required Low Risk Server Not Required Moderate Risk Server Not Required High Risk Server Upcoming Required for HIPAA Low Risk Mobile Device Not Required Moderate Risk Mobile Device Not Required High Risk Mobile Device Not Required Low Risk Network Printer Not Required Moderate Risk Network Printer Not Required High Risk Network Printer Not Required

YALE-MSS-3.2: Test the Disaster Recovery Plan
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Low Risk Endpoint Not Required Moderate Risk Endpoint Not Required High Risk Endpoint Not Required Low Risk Server Not Required Moderate Risk Server Not Required High Risk Server Upcoming Required for HIPAA Low Risk Mobile Device Not Required Moderate Risk Mobile Device Not Required High Risk Mobile Device Not Required Low Risk Network Printer Not Required Moderate Risk Network Printer Not Required High Risk Network Printer Not Required

YALE-MSS-4: Physical Security

YALE-MSS-4.1: Physically secure Critical IT Spaces
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Low Risk Endpoint Not Required Moderate Risk Endpoint Not Required High Risk Endpoint Not Required Low Risk Server Not Required Moderate Risk Server Not Required High Risk Server Required Low Risk Mobile Device Not Required Moderate Risk Mobile Device Not Required High Risk Mobile Device Not Required Low Risk Network Printer Not Required Moderate Risk Network Printer Not Required High Risk Network Printer Not Required

YALE-MSS-4.2: Physically secure the IT System
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Low Risk Endpoint Not Required Moderate Risk Endpoint Not Required High Risk Endpoint Required Low Risk Server Not Required Moderate Risk Server Not Required High Risk Server Required Low Risk Mobile Device Not Required Moderate Risk Mobile Device Not Required High Risk Mobile Device Not Required Low Risk Network Printer Not Required Moderate Risk Network Printer Not Required High Risk Network Printer Required

YALE-MSS-4.3: Ensure print jobs are physically secure
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Low Risk Endpoint Not Required Moderate Risk Endpoint Not Required High Risk Endpoint Not Required Low Risk Server Not Required Moderate Risk Server Not Required High Risk Server Not Required Low Risk Mobile Device Not Required Moderate Risk Mobile Device Not Required High Risk Mobile Device Not Required Low Risk Network Printer Not Required Moderate Risk Network Printer Not Required High Risk Network Printer Required

YALE-MSS-5: Software Security

YALE-MSS-5.1: Utilize an industry-standard secure configuration method
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Low Risk Endpoint Not Required Moderate Risk Endpoint Not Required High Risk Endpoint Required for PCI Low Risk Server Not Required Moderate Risk Server Required High Risk Server Required Low Risk Mobile Device Not Required Moderate Risk Mobile Device Not Required High Risk Mobile Device Not Required Low Risk Network Printer Not Required Moderate Risk Network Printer Not Required High Risk Network Printer Not Required

YALE-MSS-5.2: Utilize endpoint protection
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Low Risk Endpoint Required Moderate Risk Endpoint Required High Risk Endpoint Required Low Risk Server Required Moderate Risk Server Required High Risk Server Required Low Risk Mobile Device Not Required Moderate Risk Mobile Device Not Required High Risk Mobile Device Not Required Low Risk Network Printer Not Required Moderate Risk Network Printer Not Required High Risk Network Printer Not Required

YALE-MSS-5.3: Run supported software and operating systems
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Low Risk Endpoint Required Moderate Risk Endpoint Required High Risk Endpoint Required Low Risk Server Required Moderate Risk Server Required High Risk Server Required Low Risk Mobile Device Required Moderate Risk Mobile Device Required High Risk Mobile Device Required Low Risk Network Printer Required Moderate Risk Network Printer Required High Risk Network Printer Required

YALE-MSS-5.4: Ensure all software is actively supported by a vendor or open-source project
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Low Risk Endpoint Required Moderate Risk Endpoint Required High Risk Endpoint Required Low Risk Server Required Moderate Risk Server Required High Risk Server Required Low Risk Mobile Device Required Moderate Risk Mobile Device Required High Risk Mobile Device Required Low Risk Network Printer Required Moderate Risk Network Printer Required High Risk Network Printer Required

YALE-MSS-5.5: Manage all changes to the system through a change control process
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Low Risk Endpoint Not Required Moderate Risk Endpoint Not Required High Risk Endpoint Not Required Low Risk Server Not Required Moderate Risk Server Required High Risk Server Required Low Risk Mobile Device Not Required Moderate Risk Mobile Device Not Required High Risk Mobile Device Not Required Low Risk Network Printer Not Required Moderate Risk Network Printer Not Required High Risk Network Printer Not Required

YALE-MSS-6: Patching

YALE-MSS-6.1: Apply security patches regularly
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Low Risk Endpoint Required Moderate Risk Endpoint Required High Risk Endpoint Required Low Risk Server Required Moderate Risk Server Required High Risk Server Required Low Risk Mobile Device Required Moderate Risk Mobile Device Required High Risk Mobile Device Required Low Risk Network Printer Required Moderate Risk Network Printer Required High Risk Network Printer Required

YALE-MSS-7: Data Protection

YALE-MSS-7.1: Back up user-level and system-level data
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Low Risk Endpoint Not Required Moderate Risk Endpoint Required High Risk Endpoint Required Low Risk Server Not Required Moderate Risk Server Required High Risk Server Required Low Risk Mobile Device Not Required Moderate Risk Mobile Device Required High Risk Mobile Device Required Low Risk Network Printer Not Required Moderate Risk Network Printer Not Required High Risk Network Printer Not Required

YALE-MSS-7.2: Encrypt all electronic storage devices
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Low Risk Endpoint Not Required Moderate Risk Endpoint Required High Risk Endpoint Required Low Risk Server Not Required Moderate Risk Server Required High Risk Server Required Low Risk Mobile Device Not Required Moderate Risk Mobile Device Required High Risk Mobile Device Required Low Risk Network Printer Not Required Moderate Risk Network Printer Required High Risk Network Printer Required

YALE-MSS-7.3: Encrypt data in transit and at rest
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Low Risk Endpoint Not Required Moderate Risk Endpoint Required High Risk Endpoint Required Low Risk Server Not Required Moderate Risk Server Required High Risk Server Required Low Risk Mobile Device Not Required Moderate Risk Mobile Device Required High Risk Mobile Device Required Low Risk Network Printer Not Required Moderate Risk Network Printer Required High Risk Network Printer Required

YALE-MSS-7.4: Recycle IT Systems using Yale's Environmental Health and Safety (EHS) Process
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Low Risk Endpoint Required Moderate Risk Endpoint Required High Risk Endpoint Required Low Risk Server Required Moderate Risk Server Required High Risk Server Required Low Risk Mobile Device Required Moderate Risk Mobile Device Required High Risk Mobile Device Required Low Risk Network Printer Required Moderate Risk Network Printer Required High Risk Network Printer Required

YALE-MSS-7.5: Sanitize systems before re-use
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Low Risk Endpoint Required Moderate Risk Endpoint Required High Risk Endpoint Required Low Risk Server Required Moderate Risk Server Required High Risk Server Required Low Risk Mobile Device Required Moderate Risk Mobile Device Required High Risk Mobile Device Required Low Risk Network Printer Required Moderate Risk Network Printer Required High Risk Network Printer Required

YALE-MSS-7.6: All network traffic must use a strong, industry-standard encryption method
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Low Risk Endpoint Not Required Moderate Risk Endpoint Required High Risk Endpoint Required Low Risk Server Not Required Moderate Risk Server Required High Risk Server Required Low Risk Mobile Device Not Required Moderate Risk Mobile Device Required High Risk Mobile Device Required Low Risk Network Printer Not Required Moderate Risk Network Printer Required High Risk Network Printer Required

YALE-MSS-7.7: Purge data once it is no longer required
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Low Risk Endpoint Not Required Moderate Risk Endpoint Required High Risk Endpoint Required Low Risk Server Not Required Moderate Risk Server Required High Risk Server Required Low Risk Mobile Device Not Required Moderate Risk Mobile Device Required High Risk Mobile Device Required Low Risk Network Printer Not Required Moderate Risk Network Printer Required High Risk Network Printer Required

YALE-MSS-7.8: Utilize host Data Loss Prevention (DLP)
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Low Risk Endpoint Not Required Moderate Risk Endpoint Not Required High Risk Endpoint Required for HIPAA Low Risk Server Not Required Moderate Risk Server Not Required High Risk Server Not Required Low Risk Mobile Device Not Required Moderate Risk Mobile Device Not Required High Risk Mobile Device Not Required Low Risk Network Printer Not Required Moderate Risk Network Printer Not Required High Risk Network Printer Not Required

YALE-MSS-7.9: Use inactivity locks
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Low Risk Endpoint Not Required Moderate Risk Endpoint Required High Risk Endpoint Required Low Risk Server Not Required Moderate Risk Server Required High Risk Server Required Low Risk Mobile Device Not Required Moderate Risk Mobile Device Required High Risk Mobile Device Required Low Risk Network Printer Not Required Moderate Risk Network Printer Required High Risk Network Printer Required

YALE-MSS-7.10: Store Yale Data within the United States
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Low Risk Endpoint Not Required Moderate Risk Endpoint Not Required High Risk Endpoint Not Required Low Risk Server Not Required Moderate Risk Server Required High Risk Server Required Low Risk Mobile Device Not Required Moderate Risk Mobile Device Not Required High Risk Mobile Device Not Required Low Risk Network Printer Not Required Moderate Risk Network Printer Not Required High Risk Network Printer Not Required

YALE-MSS-7.11: Use secure Bluetooth
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Low Risk Endpoint Not Required Moderate Risk Endpoint Not Required High Risk Endpoint Required Low Risk Server Not Required Moderate Risk Server Not Required High Risk Server Not Required Low Risk Mobile Device Not Required Moderate Risk Mobile Device Not Required High Risk Mobile Device Required Low Risk Network Printer Not Required Moderate Risk Network Printer Not Required High Risk Network Printer Not Required

YALE-MSS-7.12: Enroll in a remote wipe capability
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Low Risk Endpoint Not Required Moderate Risk Endpoint Not Required High Risk Endpoint Not Required Low Risk Server Not Required Moderate Risk Server Not Required High Risk Server Not Required Low Risk Mobile Device Not Required Moderate Risk Mobile Device Required High Risk Mobile Device Required Low Risk Network Printer Not Required Moderate Risk Network Printer Not Required High Risk Network Printer Not Required

YALE-MSS-7.13: No circumvention of device security ("Jailbreaking")
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Low Risk Endpoint Not Required Moderate Risk Endpoint Not Required High Risk Endpoint Not Required Low Risk Server Not Required Moderate Risk Server Not Required High Risk Server Not Required Low Risk Mobile Device Not Required Moderate Risk Mobile Device Required High Risk Mobile Device Required Low Risk Network Printer Not Required Moderate Risk Network Printer Not Required High Risk Network Printer Not Required

YALE-MSS-8: Application Development Security

YALE-MSS-8.1: Follow an appropriate secure development methodology when writing software
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Low Risk Endpoint Not Required Moderate Risk Endpoint Not Required High Risk Endpoint Not Required Low Risk Server Not Required Moderate Risk Server Upcoming Required for IA High Risk Server Upcoming Required for IA Low Risk Mobile Device Not Required Moderate Risk Mobile Device Not Required High Risk Mobile Device Not Required Low Risk Network Printer Not Required Moderate Risk Network Printer Not Required High Risk Network Printer Not Required

YALE-MSS-8.2: Test for security vulnerabilities when any changes are made to the system
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Low Risk Endpoint Required Moderate Risk Endpoint Required High Risk Endpoint Required Low Risk Server Required Moderate Risk Server Required High Risk Server Required Low Risk Mobile Device Not Required Moderate Risk Mobile Device Not Required High Risk Mobile Device Not Required Low Risk Network Printer Not Required Moderate Risk Network Printer Not Required High Risk Network Printer Not Required

YALE-MSS-9: Authentication and Authorization

YALE-MSS-9.1: Ensure all account types are uniquely authenticated
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Low Risk Endpoint Required Moderate Risk Endpoint Required High Risk Endpoint Required Low Risk Server Required Moderate Risk Server Required High Risk Server Required Low Risk Mobile Device Required Moderate Risk Mobile Device Required High Risk Mobile Device Required Low Risk Network Printer Required Moderate Risk Network Printer Required High Risk Network Printer Required

YALE-MSS-9.2: Do not share account credentials (username/password)
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Low Risk Endpoint Required Moderate Risk Endpoint Required High Risk Endpoint Required Low Risk Server Required Moderate Risk Server Required High Risk Server Required Low Risk Mobile Device Required Moderate Risk Mobile Device Required High Risk Mobile Device Required Low Risk Network Printer Required Moderate Risk Network Printer Required High Risk Network Printer Required

YALE-MSS-9.3: Utilize secure passwords for authentication
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Low Risk Endpoint Required Moderate Risk Endpoint Required High Risk Endpoint Required Low Risk Server Required Moderate Risk Server Required High Risk Server Required Low Risk Mobile Device Not Required Moderate Risk Mobile Device Required High Risk Mobile Device Required Low Risk Network Printer Required Moderate Risk Network Printer Required High Risk Network Printer Required

YALE-MSS-9.4: Grant privileges to IT Systems and data according to the principle of least privilege
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Low Risk Endpoint Required Moderate Risk Endpoint Required High Risk Endpoint Required Low Risk Server Required Moderate Risk Server Required High Risk Server Required Low Risk Mobile Device Required Moderate Risk Mobile Device Required High Risk Mobile Device Required Low Risk Network Printer Required Moderate Risk Network Printer Required High Risk Network Printer Required

YALE-MSS-9.5: Deprovision accounts and access when roles & responsibilities change
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Low Risk Endpoint Required Moderate Risk Endpoint Required High Risk Endpoint Required Low Risk Server Required Moderate Risk Server Required High Risk Server Required Low Risk Mobile Device Required Moderate Risk Mobile Device Required High Risk Mobile Device Required Low Risk Network Printer Required Moderate Risk Network Printer Required High Risk Network Printer Required

YALE-MSS-9.6: Require Multifactor Authentication (MFA) for access to authenticated systems
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Low Risk Endpoint Required for IA Moderate Risk Endpoint Required for IA High Risk Endpoint Required for IA Low Risk Server Upcoming Required for IA Moderate Risk Server Upcoming Required for IA High Risk Server Upcoming Required for IA Low Risk Mobile Device Not Required Moderate Risk Mobile Device Not Required High Risk Mobile Device Not Required Low Risk Network Printer Required for IA Moderate Risk Network Printer Required for IA High Risk Network Printer Required for IA

YALE-MSS-9.7: Use University approved authentication methods
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Low Risk Endpoint Not Required Moderate Risk Endpoint Not Required High Risk Endpoint Not Required Low Risk Server Required Moderate Risk Server Required High Risk Server Required Low Risk Mobile Device Not Required Moderate Risk Mobile Device Not Required High Risk Mobile Device Not Required Low Risk Network Printer Not Required Moderate Risk Network Printer Not Required High Risk Network Printer Not Required

YALE-MSS-9.8: Secure and/or limit storage of authentication information
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Low Risk Endpoint Required Moderate Risk Endpoint Required High Risk Endpoint Required Low Risk Server Required Moderate Risk Server Required High Risk Server Required Low Risk Mobile Device Required Moderate Risk Mobile Device Required High Risk Mobile Device Required Low Risk Network Printer Required Moderate Risk Network Printer Required High Risk Network Printer Required

YALE-MSS-9.9: Allow only encrypted network protocols for authentication
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Low Risk Endpoint Required Moderate Risk Endpoint Required High Risk Endpoint Required Low Risk Server Required Moderate Risk Server Required High Risk Server Required Low Risk Mobile Device Required Moderate Risk Mobile Device Required High Risk Mobile Device Required Low Risk Network Printer Required Moderate Risk Network Printer Required High Risk Network Printer Required

YALE-MSS-9.10: Prevent brute force attacks
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Low Risk Endpoint Not Required Moderate Risk Endpoint Not Required High Risk Endpoint Upcoming Low Risk Server Not Required Moderate Risk Server Not Required High Risk Server Upcoming Low Risk Mobile Device Not Required Moderate Risk Mobile Device Not Required High Risk Mobile Device Upcoming Low Risk Network Printer Not Required Moderate Risk Network Printer Not Required High Risk Network Printer Upcoming

YALE-MSS-9.11: Use administrative and service accounts for their IT function only
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Low Risk Endpoint Required Moderate Risk Endpoint Required High Risk Endpoint Required Low Risk Server Required Moderate Risk Server Required High Risk Server Required Low Risk Mobile Device Required Moderate Risk Mobile Device Required High Risk Mobile Device Required Low Risk Network Printer Required Moderate Risk Network Printer Required High Risk Network Printer Required

YALE-MSS-9.12: Ensure authentication events are associated with an individual and not just an administrative or service account
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Low Risk Endpoint Required for IA Moderate Risk Endpoint Required for IA High Risk Endpoint Required for IA Low Risk Server Required for IA Moderate Risk Server Upcoming Required for IA High Risk Server Upcoming Required for IA Low Risk Mobile Device Not Required Moderate Risk Mobile Device Not Required High Risk Mobile Device Not Required Low Risk Network Printer Required for IA Moderate Risk Network Printer Upcoming Required for IA High Risk Network Printer Upcoming Required for IA

YALE-MSS-10: Network Exposure

YALE-MSS-10.1: Enable ports, protocols, and services on an as needed basis
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Low Risk Endpoint Required Moderate Risk Endpoint Required High Risk Endpoint Required Low Risk Server Required Moderate Risk Server Required High Risk Server Required Low Risk Mobile Device Required Moderate Risk Mobile Device Required High Risk Mobile Device Required Low Risk Network Printer Required Moderate Risk Network Printer Required High Risk Network Printer Required

YALE-MSS-10.2: Configure host firewalls to deny all unsolicited inbound traffic by default
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Low Risk Endpoint Not Required Moderate Risk Endpoint Not Required High Risk Endpoint Required for PCI Low Risk Server Not Required Moderate Risk Server Not Required High Risk Server Required for PCI Low Risk Mobile Device Not Required Moderate Risk Mobile Device Not Required High Risk Mobile Device Not Required Low Risk Network Printer Not Required Moderate Risk Network Printer Not Required High Risk Network Printer Not Required

YALE-MSS-10.3: Utilize host firewalls to control and log all inbound and outbound traffic
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Low Risk Endpoint Not Required Moderate Risk Endpoint Required for IA High Risk Endpoint Required for IA Low Risk Server Not Required Moderate Risk Server Required for IA High Risk Server Required for IA Low Risk Mobile Device Not Required Moderate Risk Mobile Device Not Required High Risk Mobile Device Not Required Low Risk Network Printer Not Required Moderate Risk Network Printer Not Required High Risk Network Printer Not Required

YALE-MSS-11: Security Training

YALE-MSS-11.1: Require security training for all users of Yale Data and Yale IT Systems
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Low Risk Endpoint Required Moderate Risk Endpoint Required High Risk Endpoint Required Low Risk Server Required Moderate Risk Server Required High Risk Server Required Low Risk Mobile Device Required Moderate Risk Mobile Device Required High Risk Mobile Device Required Low Risk Network Printer Required Moderate Risk Network Printer Required High Risk Network Printer Required

YALE-MSS-11.2: Ensure all third parties complete required training
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Low Risk Endpoint Not Required Moderate Risk Endpoint Not Required High Risk Endpoint Required for HIPAA Required for PCI Low Risk Server Not Required Moderate Risk Server Not Required High Risk Server Required Low Risk Mobile Device Not Required Moderate Risk Mobile Device Not Required High Risk Mobile Device Not Required Low Risk Network Printer Not Required Moderate Risk Network Printer Not Required High Risk Network Printer Not Required

YALE-MSS-12: Intrusion Detection

YALE-MSS-12.1: Capture inbound and outbound network flow data
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Low Risk Endpoint Not Required Moderate Risk Endpoint Not Required High Risk Endpoint Required for IA Low Risk Server Required for IA Moderate Risk Server Upcoming Required for IA High Risk Server Upcoming Required for IA Low Risk Mobile Device Not Required Moderate Risk Mobile Device Not Required High Risk Mobile Device Not Required Low Risk Network Printer Required for IA Moderate Risk Network Printer Upcoming Required for IA High Risk Network Printer Upcoming Required for IA

YALE-MSS-12.2: Utilize a network firewall to allow the least amount of access possible
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Low Risk Endpoint Not Required Moderate Risk Endpoint Not Required High Risk Endpoint Not Required Low Risk Server Required Moderate Risk Server Required High Risk Server Required Low Risk Mobile Device Not Required Moderate Risk Mobile Device Not Required High Risk Mobile Device Not Required Low Risk Network Printer Not Required Moderate Risk Network Printer Not Required High Risk Network Printer Not Required

YALE-MSS-12.3: Implement an Intrusion Detection and Prevention System
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Low Risk Endpoint Not Required Moderate Risk Endpoint Not Required High Risk Endpoint Not Required Low Risk Server Not Required Moderate Risk Server Required High Risk Server Required Low Risk Mobile Device Not Required Moderate Risk Mobile Device Not Required High Risk Mobile Device Not Required Low Risk Network Printer Not Required Moderate Risk Network Printer Not Required High Risk Network Printer Not Required

YALE-MSS-13: Logging

YALE-MSS-13.1: Ensure logging contains information required for incident response
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Low Risk Endpoint Not Required Moderate Risk Endpoint Not Required High Risk Endpoint Not Required Low Risk Server Required Moderate Risk Server Required High Risk Server Required Low Risk Mobile Device Not Required Moderate Risk Mobile Device Not Required High Risk Mobile Device Not Required Low Risk Network Printer Not Required Moderate Risk Network Printer Not Required High Risk Network Printer Not Required

YALE-MSS-13.2: Log all authentication events
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Low Risk Endpoint Not Required Moderate Risk Endpoint Required High Risk Endpoint Required Low Risk Server Not Required Moderate Risk Server Required High Risk Server Required Low Risk Mobile Device Not Required Moderate Risk Mobile Device Not Required High Risk Mobile Device Not Required Low Risk Network Printer Not Required Moderate Risk Network Printer Not Required High Risk Network Printer Not Required

YALE-MSS-13.3: Ensure logs are forwarded to a log server in addition to the in-scope system
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Low Risk Endpoint Not Required Moderate Risk Endpoint Not Required High Risk Endpoint Not Required Low Risk Server Not Required Moderate Risk Server Upcoming High Risk Server Upcoming Low Risk Mobile Device Not Required Moderate Risk Mobile Device Not Required High Risk Mobile Device Not Required Low Risk Network Printer Not Required Moderate Risk Network Printer Not Required High Risk Network Printer Not Required

YALE-MSS-13.4: Collect and review all source system activity logs
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Low Risk Endpoint Not Required Moderate Risk Endpoint Not Required High Risk Endpoint Not Required Low Risk Server Not Required Moderate Risk Server Not Required High Risk Server Required for HIPAA Low Risk Mobile Device Not Required Moderate Risk Mobile Device Not Required High Risk Mobile Device Not Required Low Risk Network Printer Not Required Moderate Risk Network Printer Not Required High Risk Network Printer Not Required

YALE-MSS-14: Security Incident Reporting

YALE-MSS-14.1: Report any suspected security incidents to the Information Security Team in a timely manner
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Low Risk Endpoint Required Moderate Risk Endpoint Required High Risk Endpoint Required Low Risk Server Required Moderate Risk Server Required High Risk Server Required Low Risk Mobile Device Required Moderate Risk Mobile Device Required High Risk Mobile Device Required Low Risk Network Printer Required Moderate Risk Network Printer Required High Risk Network Printer Required

YALE-MSS-14.2: Identify the system's primary security contact
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Low Risk Endpoint Upcoming Moderate Risk Endpoint Upcoming High Risk Endpoint Upcoming Low Risk Server Upcoming Moderate Risk Server Upcoming High Risk Server Upcoming Low Risk Mobile Device Not Required Moderate Risk Mobile Device Not Required High Risk Mobile Device Not Required Low Risk Network Printer Not Required Moderate Risk Network Printer Not Required High Risk Network Printer Not Required