Why did cybersecurity experts recently stop recommending that you change your passwords every ninety days?

Why the calendar is a poor password alarm

A password does not become unsafe simply because it has been used for 90 days. It becomes unsafe when someone else learns it—through a data breach, phishing, malware, or guessing. A scheduled reset does not undo any of those exposures unless the user actually changes the compromised password.

Meanwhile, frequent mandatory changes can push people toward predictable edits: adding a number, changing a final character, or reusing a familiar password on another site. Those patterns are easier to remember, but also easier for attackers to anticipate. Some users may write passwords down or choose simpler ones to keep up with repeated resets.

Change passwords when there is a reason

Security guidance has therefore moved away from routine expiration rules for ordinary accounts. The more useful trigger is evidence of risk: change a password if a service reports a breach, an account shows suspicious activity, or the password was reused and may have been exposed. A password should also be replaced if it is weak or no longer private.

That shifts attention from the calendar to the quality of the credential. A long, unique password for each account limits the damage if one service is breached. A password manager can generate and remember those distinct passwords, so users do not have to invent or memorize them all. Multifactor authentication adds another barrier: even if a password is stolen, an attacker may still need a separate proof of identity.

The practical tradeoff

Regular resets can still make sense in specific situations, such as when an organization has evidence that credentials were compromised or when an account is governed by a particular security policy. But changing every password on a fixed schedule is not a substitute for detecting breaches, blocking suspicious sign-ins, or using stronger authentication.

The key distinction is simple: change a password because it may be exposed, not merely because it is old. That avoids needless resets while directing effort toward the moments when a new password can actually reduce risk.