Email Data Breach: What to Do When Your Email is Leaked

Discovering your email has been exposed in a data breach can be alarming, but don't panic. By following these steps quickly and methodically, you can minimize the damage and protect yourself from further harm.

Step 1: Change Your Password Immediately

Your first priority is changing your email password right away. Create a strong, unique password that includes uppercase and lowercase letters, numbers, and special symbols. Aim for at least 12 characters. Most importantly, if you've used this same password anywhere else, change those accounts too. Password reuse is one of the biggest security risks after a breach.

Step 2: Enable Two-Factor Authentication

Enable two-factor authentication (2FA) on your email account immediately. This adds an extra layer of security so that even if someone obtains your password, they still can't access your account without the second factor. Use an authenticator app like Google Authenticator or Authy rather than SMS verification, as SIM swapping attacks can bypass text message codes.

Step 3: Check Your Account Activity

Review your email's login history and sent messages carefully. Look for any unusual activity like logins from unfamiliar locations or devices, or emails you didn't send. Check if any settings have been changed, such as forwarding rules that might be sending copies of your emails to an attacker. Many email providers show recent account activity in their security settings.

Step 4: Watch for Follow-Up Attacks

After a breach, expect an increase in phishing attempts targeting your exposed email. Be extra vigilant about emails claiming to be from banks, online stores, or other services. Attackers often use breach data to craft convincing targeted phishing emails. Never click suspicious links, and when in doubt, contact companies directly through their official websites.

Step 5: Check What Else Was Exposed

Use services like HaveIBeenPwned.com to check if your email appears in known data breaches and what information was exposed. Sometimes breaches include passwords, phone numbers, or other personal data. Understanding what was leaked helps you know what additional steps to take.