A secure password is a password that is difficult to guess or crack by attackers. It should have a combination of upper and lower case letters, numbers, and symbols, and should not contain easily guessable information such as personal information or common words. It is also recommended to use a long password, at least 12 characters or more.
Login authentication password requirements vary depending on the platform or website. Some common requirements include minimum length, character complexity, and frequency of password changes. For example, a website may require a password to be at least 8 characters long, containing both uppercase and lowercase letters, numbers, and symbols. It may also require users to change their password every 90 days or so.
When creating a password, it is important to follow the password requirements set by the platform or website to ensure that the password is secure and can be authenticated. Using a strong, unique password for each platform is also recommended, as it can prevent a security breach on one platform from affecting other accounts. Additionally, enabling two-factor authentication can provide an extra layer of security to the login process.