Reused passwords are one of the fastest ways a single breach spreads across your digital life. A few disciplined habits dramatically reduce that risk.
1. Use a password manager
A password manager generates and stores unique credentials for every site. You only need to remember one strong master password.
2. Make passphrases long
Length beats complexity. A passphrase such as river-candle-bridge-94 is harder to crack and easier to remember than a short mix of symbols.
3. Never reuse passwords
If one service leaks your credentials, attackers will try them everywhere. Unique passwords contain the damage to a single account.
4. Turn on two-factor authentication
Even a strong password can be stolen. MFA adds a second layer that stops most automated account takeovers.
5. Update credentials after a breach
Check breach notification services and change affected passwords immediately. Prioritize email and banking accounts first.