You’ve received a strange email…
Or your inbox is suddenly full of spam.
It might mean your email was part of a data breach.
Here’s how to check — and what to do if it was.
✅ 1. Use breach check tools
Go to https://haveibeenpwned.com
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Enter your email
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See if it was exposed in known breaches (LinkedIn, Adobe, Dropbox, etc.)
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Shows when and where the breach happened
✅ Also check Firefox Monitor
✅ 2. Signs your email is compromised
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Password reset emails you didn’t request
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Login alerts from strange locations
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People saying you sent them spam
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Subscriptions to sites you never joined
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Inbox full of phishing emails
✅ 3. If it’s been leaked, do this:
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Immediately change your password
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Enable two-factor authentication (2FA)
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Check login activity on connected services
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Remove or unlink unused third-party apps
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Use a password manager to create new, strong passwords
✅ 4. Check if your password was leaked too
Sites like DeHashed, LeakCheck, or Have I Been Pwned show if your passwords were in leaked dumps.
✅ If your password shows up anywhere = stop using it, everywhere.
✅ 5. Avoid future leaks
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Never reuse passwords
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Use alias/disposable emails on risky sites
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Monitor your email regularly with breach tools
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Avoid signing up via Facebook or Google on every site
Key points to remember
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Check your email for leaks at HaveIBeenPwned.com
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If exposed: change passwords + enable 2FA
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Don’t ignore strange activity — investigate fast
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Prevention = strong passwords + disposable emails
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A leaked email is annoying — but fixable if you act quickly