https://cheatsheetseries.owasp.org/cheatsheets/Cryptographic_Storage_Cheat_Sheet.html
This article provides a simple model to follow when implementing solutions to protect data at rest. Passwords should not be stored using reversible encryption - secure password hashing algorithms should be used instead.
https://owasp.org/www-project-web-security-testing-guide/latest/4-Web_Application_Security_Testing/04-Authentication_Testing/02-Testing_for_Default_Credentials
This link discusses the process of testing web applications for default credentials.
https://docs.security.tamu.edu/docs/security-controls/IA/IA-6/
This example policy describes how information resources shall obscure feedback of authentication information during the authentication process to protect the information from possible exploitation/use by unauthorized individuals.