Thursday November 6 2025

How to check if your passwords have been leaked online

How to check if your passwords have been leaked online
Easily learn how to check if your passwords have been leaked to compromised websites or databases and protect them immediately.

In the digital world, our passwords are the key to all our important data. Unfortunately, with constant attacks and leaks from major companies, our passwords may have been exposed without us even knowing it. This problem affects millions of people worldwide and can lead to identity theft, financial losses, and a breach of our privacy.

If you use the same password on multiple websites or have old, simple passwords, it's essential to check if they've been leaked. Fortunately, there are simple and reliable tools that can help you find out if your passwords have been exposed online.

How to check if your passwords have been leaked

(I.e. Using Have I Been Pwned

The Have I Been Pwned is the most popular and trusted data breach monitoring service in the world. It was created by a security expert and includes billions of records from compromised accounts.

  • Go to the website and type your email in the search field.
  • If your email appears in a leak, you will see in detail which websites have been compromised and when it happened
  • Use "Pwned Passwords" to check if your specific passwords have been leaked - the system does not store your password, it only checks it
  • Sign up to receive automatic notifications when your email appears in a new leak

🢢 Check via Google

Google offers a built-in tool that automatically checks your saved passwords in the Chrome browser and your Google account.

  • Go to Google Settings and select "Password Manager" or visit passwords.google.com directly.
  • Use the "Password Checkup" feature to automatically check all saved passwords for leaks
  • The system will also warn you about weak passwords and passwords you use on multiple accounts.
  • If compromised passwords are detected, change them immediately by following the instructions you will see.

🟡 Using Firefox Monitor

Ο Firefox Monitor It works similarly to Have I Been Pwned and alerts you immediately about leaks. It is ideal for those who use the Firefox browser.

  • Visit the Firefox Monitor website and enter your email
  • You will see detailed results on whether your email has been included in known data breaches
  • Sign up to receive automatic email notifications for future breaches involving your account
  • Follow the advice provided on how to protect yourself

🟠 Password Management Programs

Applications like 1Password, LastPass, Bitwarden and Dashlane They have automatic leak detection and are the most secure solution for managing your passwords.

  • They securely store all your passwords in an encrypted "vault" protected by a master password
  • They automatically and immediately notify you if any of your passwords are leaked
  • They automatically generate strong and unique passwords for every new account you create
  • Automatically fill in your login details on websites and apps, saving you time
  • They work on all your devices (computer, mobile, tablet) with synchronization

🛡️ How to protect yourself from future leaks

🔴 Unique and strong passwords

Never use the same password on multiple accounts. If one website is hacked, all your accounts with the same password are at risk. Create passwords with at least 12 characters that contain uppercase and lowercase letters, numbers, and symbols. Avoid obvious words, birthdays, or names. A good way is to create a long phrase that you can easily remember, for example: "In2023!SummerGoesToCrete".

🔵 Two-step authentication (2FA)

Turn on two-step verification wherever it's available. This means that in addition to your password, you'll need a second thing to sign in - usually a code you receive on your phone. That way, even if someone gets your password, they won't be able to get into your account without access to your phone. It's available across all major services like Google, Facebook, Instagram, Twitter, banks and more.

🟢 Secure password storage

Avoid storing passwords in notebooks, computer files, emails or photos on your phone. These methods are extremely dangerous. Use only special password management programs mentioned above, which encrypt your data and protect it with modern security technologies. Never write your passwords on paper that can be lost or seen by someone else.

🟡 Regular check and update

Check your passwords at least once a month using the tools we mentioned. Also, change your passwords on important accounts (email, banks, social networks) every 6-12 months. Monitor your account activity for anything suspicious, such as connections from unknown locations or changes to settings that you did not make.

🟣 Beware of (Phishing)

Never click on links in suspicious emails or messages asking you to change your password. Banks and legitimate companies never ask for passwords via email. Always type the website address into your browser yourself instead of following links. Always check that the address starts with "https://" and has a lock icon, which means the connection is secure.

🔵 Delete old accounts

If you have accounts you no longer use (old emails, forgotten social networks, old websites), delete them. The more accounts you have online, the more likely they are to be exposed to a leak. Keep only the ones you actively use and can monitor.

⚠️ Immediate action if you discover a leak: If you find that one of your passwords has been leaked, change it immediately on all accounts that you used it on. Also, carefully check your account activity history for any suspicious actions such as purchases you did not make, connections from unknown locations, or changes to your contact information. If you see anything suspicious, contact the service's support immediately. For bank accounts, notify your bank immediately.

Conclusion

Keeping our passwords secure is critical to protecting our privacy, financial data, and digital identity. Data breaches aren't something that "just might happen" - they happen all the time, in companies big and small. However, with the right practices and tools, you can protect yourself effectively.

Take a few minutes now to check if your passwords have been leaked using the tools we've presented. Use different, strong passwords for each account, enable two-step verification where possible, and seriously consider using a password manager. These simple actions can make a huge difference in your security.

Digital security isn't just for experts - it's something everyone can and should do. With these simple steps, you can drastically reduce the risk of a breach and ensure your accounts stay safe.

Don't delay! Your security starts today. Implement these practices now and protect your data before it's too late.

(I.e. Last updated: November 2025


Evangelos
✍️ Evangelos
Its creator LoveForTechnology.net — an independent and trusted source for tech guides, tools, software, and practical solutions. Each article is based on personal testing, evidence-based research, and care for the average user. Here, technology is presented simply and clearly.



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