← Breach Safety · // RESPONSE PLAYBOOK
What to do after a data breach
Speed matters — but order matters more. Do these steps in sequence so attackers don’t keep a foothold while you scramble.
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1. Lock down the breached account
Change that account’s password now. Review active sessions / devices and sign out anything you don’t recognize. Update recovery email and phone if they look wrong.
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2. Turn on strong 2FA
Prefer authenticator apps or passkeys over SMS when possible. SMS is better than nothing, but SIM-swap risk is real.
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3. Hunt password reuse
If that password (or a close variant) was used elsewhere — email, banking, social, work VPN — rotate those immediately. Reuse is how one leak becomes account takeover across your life.
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4. Expect phishing
Breach headlines trigger fake “reset your password” and “verify your identity” emails. Go to sites by typing the URL or using a bookmark — never from a panicked email link.
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5. Protect money and identity
Enable bank transaction alerts. Check credit / identity monitoring if government ID or financial data may have leaked. Watch for new loans or SIM changes.
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6. Clean the long tail
Revoke third-party app access, check email filters/forwarding rules, and rotate API keys or app passwords if you use them.