How to check compromised email addresses

Checking for compromised passwords is essential for maintaining account security. Cybercriminals frequently exploit leaked password databases, so it’s important to ensure your passwords haven’t been exposed. Here’s how to check if your passwords are compromised and what steps to take if they are:

  1. Use Trusted Password Check Tools
    Several reliable tools can check if your passwords have been involved in a data breach.

Have I Been Pwned?

Visit Have I Been Pwned.
Enter your email address or password (it’s hashed securely) to see if it appears in known breach databases.
Never reuse passwords flagged as compromised.
Google Password Checkup

Built into Chrome, this tool checks saved passwords against breach databases.
Go to Chrome Settings > Autofill > Password Manager > Check Passwords.
Password Managers
Many password managers, such as LastPass, Dashlane, and 1Password, have breach detection features that alert you if any stored passwords are compromised.

  1. Monitor Your Accounts for Unusual Activity
    Compromised passwords may lead to unauthorized access. Signs include:

Login attempts from unknown locations.
Password reset emails you didn’t request.
Unexpected account changes or transactions.
Enable account notifications to catch these issues early.

  1. Check Breach Alerts from Companies
    Many services notify users if their accounts are involved in breaches.

Regularly check emails from services you use.
Visit the account security page of those services for breach notifications.

  1. Enable Security Features to Prevent Further Exposure
    Even if your passwords are secure today, proactive measures can safeguard them:

Enable Two-Factor Authentication (2FA): Adds a second layer of security, making compromised passwords less risky.
Use Unique Passwords for Every Account: Avoid reusing passwords to minimize damage from a breach.
Adopt a Password Manager: Automatically generates strong, unique passwords and securely stores them.
What to Do If Your Password Is Compromised
Change the Password Immediately: Create a new, strong password using a combination of letters, numbers, and special characters.
Check Connected Accounts: If the compromised account has links to others, update those passwords too.
Monitor Financial Transactions: If the breached account handles sensitive information like banking, keep an eye on your statements.
Enable 2FA on Affected Accounts: Adds another level of protection against unauthorized logins.
Best Practices for Password Security
Regularly update your passwords, even if they’re not flagged.
Avoid using personal information (like birthdays) in your passwords.
Stay informed about new breaches through trusted sources like Have I Been Pwned.
By routinely checking for compromised passwords and implementing robust security measures, you can significantly reduce your risk of account compromise.