Check if your email has been exposed in a data breach

by | Oct 20, 2023 | Security | 0 comments

Discovering your email has been leaked in a data breach can be alarming—but knowing what to do next can make all the difference. This guide will walk you through the exact steps you should take to check if your email has been compromised and how to protect yourself from further harm.

1. Check If Your Email Was Involved in a Breach

The first step is to determine whether your email address has appeared in any known breaches. You can use websites like:

These sites cross-check your email against massive databases of breached credentials.

Checking email on breach detection website

2. Subscribe to Breach Notification Services

Many platforms allow you to sign up for future alerts if your email shows up in new breaches. Consider:

  • Have I Been Pwned notifications
  • Google Account Security alerts
  • Identity theft protection tools like Norton or LifeLock

Subscribe to email breach alerts

3. Change Passwords Immediately

If your email has been breached, immediately change your password for any affected service—and anywhere else you’ve reused it. Make sure the new password is:

  • Unique (never reused across accounts)
  • Strong (mix of upper/lowercase, numbers, symbols)
  • Stored securely (via a password manager like Bitwarden, 1Password, or LastPass)

Changing a strong password

4. Enable Two-Factor Authentication (2FA)

Two-factor authentication adds a second layer of security by requiring a verification code (via app or SMS) in addition to your password. Enable it on all major services like:

  • Gmail / Google Accounts
  • Facebook, Instagram, Twitter
  • Bank and financial apps

Two-factor authentication screen

5. Watch Out for Phishing Attacks

Cybercriminals often target breached users with fake emails to steal even more data. Here’s how to protect yourself:

  • Don’t click unknown links or open attachments
  • Verify sender addresses
  • Use email filters or anti-spam services

Email phishing warning

6. Monitor Financial and Identity Accounts

If your email is tied to sensitive services, consider placing a fraud alert or credit freeze through Equifax, Experian, or TransUnion. You can also:

  • Use credit monitoring apps (Credit Karma, Experian)
  • Check for unknown logins or devices on your accounts
  • Use identity monitoring tools (e.g., Aura, IdentityForce)

Monitoring account and identity

7. Strengthen Future Account Security

Take a proactive approach by upgrading your long-term account safety:

  • Use a reliable password manager
  • Rotate passwords every 3–6 months
  • Enable login alerts on major services

Password manager dashboard➡️ Also read: Top Password Management Tools

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