10 Passwords Under Threat & Why You Need Tougher Security

In an age where cyberattacks are escalating in frequency and sophistication, weak or reused passwords remain one of the most exploited security vulnerabilities.

From phishing schemes to brute-force attacks, poor password habits continue to expose individuals and organizations to major risks.

Here are 10 types of passwords that are especially vulnerable—along with security tips to help safeguard your digital life.

1. Default passwords

Examples: admin, 1234, password

Default passwords are pre-set by manufacturers and widely known. They’re often found in user manuals or online forums.

Attackers commonly scan for devices and systems using default credentials. Change all default credentials immediately after installation.

2. Easily guessable passwords

Examples: 123456, qwerty, iloveyou
These passwords top the list of the most commonly used—and breached—passwords globally.

Hackers try these first in brute-force or credential stuffing attacks. Use long, random passwords or passphrases generated by a trusted password manager.

3. Personal information-based passwords

Examples: John1990, Sarah123, Fluffy2020
Including names, birthdays, or pets makes passwords easier to remember—but also easier to hack.

Personal info is often accessible through social media or data breaches. Avoid any personal details in passwords. Opt for randomness over familiarity.

4. Reused passwords across multiple accounts

One data breach can give attackers access to all accounts using that same password. Always use unique passwords for every account, especially email, banking, and cloud services.

5. Old passwords

If a password was exposed in a past breach, it may still be circulating on the dark web. Rotate passwords regularly, particularly for critical services.

6. Simple dictionary words or variants

Examples: football2022, sunshine1, hello123
These are easy for attackers to crack using dictionary or hybrid attacks.

Even adding numbers or symbols to common words doesn’t make them much safer. Use complex passphrases or random password strings.

7. Using your email address as a password

An email is often publicly available or easy to guess—and it should never double as your password. Keep usernames and passwords distinct, and always avoid overlap.

8. Passwords stored in plain text

If your device is compromised or your notes are accessed, your passwords are immediately readable. Use an encrypted password manager to securely store your credentials.

9. Passwords shared via insecure channels

Examples: Sending passwords over email, Slack, or SMS.

These messages can be intercepted or accessed by others in the thread. Use secure password-sharing tools or encrypted messaging apps when absolutely necessary.

10. Single-factor protected passwords

A password alone is often not enough protection against modern attacks. Enable Multi-Factor Authentication (MFA) wherever possible to add an extra layer of security.

Conclusion

Weak and outdated passwords are a hacker’s best friend. Taking the time to secure your accounts with stronger, more complex, and unique passwords—combined with multi-factor authentication—can prevent the vast majority of cyberattacks.

Need help getting started? Consider using a password manager, enabling MFA on all accounts, and educating your team or family on password safety.