Not Using Two-Factor Authentication
While it’s not necessarily related to passwords, it’s a good idea to enable two-factor authentication whenever possible. That way, even if a hacker gains access to one of your passwords, there’s an additional step preventing them from hijacking your accounts.
Most 2FA systems rely on SMS text messages, which has its own security risks. If you’re serious about locking down your important accounts (like emails or bank services), consider investing in a physical security key.