Standard:
YALE-MSS-9.2: Utilize secure passwords for authentication
YALE-MSS-9.2.2: Do not reuse passwords for multiple accounts
Details
Password reuse makes a user more vulnerable to credential stuffing. Credential stuffing is a technique where attackers take breached credentials from one platform and attempt to use them elsewhere. This attack relies on users having the same credentials across multiple sites.
Unique passwords must be used for all accounts.
Your Yale NetID password must not be used for any other account, including personal accounts.
Consider using a password manager. Additional information can be found at the link below.