Signs Your Password Has Been Compromised

 

Password leaks usually don't announce themselves — they show up as smaller, odd signals first, before anything obviously goes wrong.

Warning Signs Worth Taking Seriously

• A login notification or email for a sign-in you didn't make
• A password suddenly not working, with no reset requested
• Unexpected account activity — sent emails you didn't write, purchases you didn't make
• A breach notification for a service you have an account with

How to Check for Free

Several free, reputable services let you check whether an email address has appeared in a known data breach. It's worth checking periodically, not just when something already feels wrong.

Example

If the same password is used across five accounts and one of those services gets breached, all five are now effectively compromised — not just the one that leaked. This is the core argument for unique passwords per account, generated freely rather than reused from memory.

Free Password Generator — Fix It Fast

Once a password is confirmed or suspected compromised, generate a new, unique one immediately rather than making a small tweak to the old one — small variations of a known-leaked password are often guessable too.