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Windows sign-in options and account protection - Microsoft Support
Download Microsoft Edge More info. Table of contents Exit focus mode. Table of contents. Submit and view feedback for This product This page. View all page feedback. In this article. Describes the best practices, location, values, policy management, and security considerations for the Enforce password history security policy setting. Describes the best practices, location, values, policy management, and security considerations for the Maximum password age security policy setting.
Describes the best practices, location, values, policy management, and security considerations for the Minimum password age security policy setting. Describes the best practices, location, values, policy management, and security considerations for the Minimum password length security policy setting. The Passwords must meet complexity requirements policy setting determines whether passwords must meet a series of strong-password guidelines.
When enabled, this setting requires passwords to meet the following requirements:. Both checks aren't case-sensitive. The samAccountName is checked in its entirety only to determine whether it's part of the password. If the samAccountName is fewer than three characters long, this check is skipped. The displayName is parsed for delimiters: commas, periods, dashes or hyphens, underscores, spaces, pound signs, and tabs.
If any of these delimiters are found, the displayName is split and all parsed sections tokens are confirmed not to be included in the password. Tokens that are shorter than three characters are ignored, and substrings of the tokens aren't checked. For example, the name "Erin M.
Hagens" is split into three tokens: "Erin", "M", and "Hagens". Because the second token is only one character long, it's ignored. So, this user could not have a password that included either "erin" or "hagens" as a substring anywhere in the password.
The rules that are included in the Windows Server password complexity requirements are part of Passfilt. Configure the Minimum password length policy setting to a value of 8 or more. If the number of characters is set to 0, no password will be required. In most environments, we recommend an eight-character password because it's long enough to provide adequate security, but not too difficult for users to easily remember. This configuration provides adequate defense against a brute force attack.
Using the Password must meet complexity requirements policy setting in addition to the Minimum password length setting helps reduce the possibility of a dictionary attack.
Some jurisdictions have established legal requirements for password length as part of establishing security regulations. Requirements for extremely long passwords can actually decrease the security of an organization because users might leave the information in an unsecured location or lose it. If very long passwords are required, mistyped passwords could cause account lockouts and increase the volume of Help Desk calls. If your organization has issues with forgotten passwords because of password length requirements, consider teaching your users about passphrases, which are often easier to remember and, because of the larger number of character combinations, much harder to discover.
The only thing increased by constantly changing passwords, is user's familiarity with their help desk, or password reset mechanisms. But this all does not get through to people deciding to propagate this story of ever changing passwords or enforcing it on coworkers only to say later: they did all they could to enhance and hereby sabotage the security of their company.
Why not enforcing to change biometric data in Windows Hello? Replacing the user would be even better, no one would ever know which one needs to be bribed in order to get access to desired information. Unless you change passwords every hour by the time you actually change your passwords it's already too late. Anyone that steals your passwords would use them right away, not wait for weeks or months.
People that are foced to regularly change their passwords often resort to some kind of logical system to generate and remember their passwords. Therefore forcing people to regularly change their passwords is bad policy. Windows Central Newsletter. Get the best of Windows Central in in your inbox, every day! Contact me with news and offers from other Future brands. Receive email from us on behalf of our trusted partners or sponsors.
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