USNH accounts and passwords are managed through Microsoft's MyAccount and Self-Service Password Reset (SSPR) tools.
Accounts: FAQ for USNH Accounts
https://myaccount.microsoft.com
Password Best Practices
USNH Password Policy
Tips to Stay Safe Online
Tips to Stay Safe Online: Passwords
Visit the Technology Help Desk Support page to locate your local campus contact information or to submit an online technology support request. For password issues you must call or visit the Help Desk in person.