Most account hacks are not the result of sophisticated cyberattacks. They happen because of simple, avoidable password mistakes. Here are the seven most common errors and how to fix each one.

1. Reusing Passwords Across Multiple Sites

This is the single most dangerous password mistake. When you use the same password on multiple websites, a breach of any one site compromises all of them. In 2024, over 10 billion credentials were exposed in data breaches — and password reuse means each breach cascades across your entire digital life.

Fix: Use a password manager to generate and store a unique password for every account. Read our guide on why you need a different password for every site.

2. Using Short Passwords

Every character you add to a password exponentially increases the time required to crack it. An 8-character password can be cracked in hours by modern hardware. A 12-character password takes centuries. Yet many people still use passwords of 6-8 characters because they are easier to type.

Fix: Use passphrases of 16+ characters. Four random words joined by hyphens (e.g., "autumn-cloud-turtle-piano") are both easier to remember and far more secure than "P@ssw0rd1".

3. Using Personal Information in Passwords

Your name, birthdate, pet's name, anniversary, children's names, or favourite sports team are easily discovered from social media or public records. Attackers specifically target these as first guesses. "LiverpoolFC2019!" is not secure — it is the first thing an attacker who checks your social media will try.

Fix: Never use any personal information in your passwords. Use randomly generated passwords from a password manager.

4. Using Common Password Patterns

Attackers' cracking tools start with the most common patterns: "123456," "password," "qwerty," "letmein," "admin," and seasonal variations like "Christmas2024." They also try common keyboard patterns and sequential characters. Even with complexity requirements, "Summer2025!" follows a predictable pattern that cracking tools know well.

Fix: Use randomly generated passwords. The only predictable part of a strong password is that it cannot be predicted.

5. Not Using Two-Factor Authentication

MFA blocks 99.9% of automated account takeover attacks according to Microsoft. Yet many accounts remain protected by passwords alone. A strong password plus 2FA means even if your password is compromised, the attacker cannot access your account.

Fix: Enable 2FA on every account that supports it, starting with email and financial accounts. See our step-by-step 2FA guide for setup instructions.

6. Falling for Phishing Attempts

The strongest password in the world is useless if you enter it on a fake login page. Phishing attacks trick you into giving your credentials to an attacker-controlled website. Even unique passwords and 2FA can be bypassed if you enter them on a phishing site.

Fix: Always verify the URL before entering your password. Use a password manager that offers domain-bound autofill — if it does not offer to fill, the site is fake.

7. Writing Passwords Down in Unsafe Places

Sticky notes on monitors, notebooks in desk drawers, and text files on your desktop are not secure storage. Physical access to these — from a visitor, cleaner, or burglar — exposes every password you have written down. Digital password managers use strong encryption and are far more secure than any physical storage method.

Fix: Use a password manager as your single source of truth. Write down only the master password, and store it securely in a separate physical location.

Avoiding these seven mistakes dramatically reduces your risk of account takeover. Start with a password manager and 2FA — the two changes that give you the most security improvement for the least effort.