7. Not Updating Passwords After a Breach
Sites like HaveIBeenPwned show billions of breached credentials. If you haven’t updated your passwords recently, chances are at least one has been leaked.
Still, most users only change passwords after an attack—or never at all. This gives hackers months or even years to exploit your data.
Fix: Check your email on breach tracking tools every few months. Immediately change any affected passwords—even if you haven’t noticed suspicious activity yet.