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Hacked? A Step-by-Step Emergency Response

Got hacked? Start here. Step-by-step response for a compromised account, financial theft, or stolen device - in order of urgency.

PrivacyUpdated August 19, 2026
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Do these first

If you think an account has been compromised, work through these now - in order. Read the rest later.

Phase 1: Stop the hackers

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Hacked Accounts

When you’re locked out of your email or see logins you don’t recognize.

Priority 1

Immediate Steps

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Stolen Money

When you see charges you didn’t make or your balance drops. I’ve had this happen with a credit card - caught it within the day, disputed it, and had the money back within a week. Speed matters.

Priority 1

Stop the Bleeding

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Hardware Compromise

Signs someone else is controlling your device, or malware that won’t go away.

Priority 1

Containment Steps

Phase 2: Address specific attack vectors

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SIM Swapping

Someone moved your phone number onto their device

CRITICAL

Why this one is urgent

Once they have your number, every SMS code goes to them - which means they can reset the password on your bank, your email, and anything else using text-message 2FA. Minutes matter here. Brian Krebs has documented these cases for years if you want to understand how the attack actually runs.

Immediate Recovery

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Voice Phishing (Vishing)

Someone calling and pretending to be your bank, the IRS, or family

HIGH
Common Attack Indicators
  • They ask for your password, PIN, or a 2FA code.
  • They create urgency or threaten legal trouble to rush you.
  • They ask you to pay in gift cards/crypto, or to install remote-access software.

Mitigation Steps

Phase 3: Make sure it doesn’t happen again

Once you’re stable, close the gap that let this happen in the first place so it doesn’t repeat.

Frequently asked questions

My account was hacked - what do I do first?
Change the password immediately from a device you trust (not the one that may be compromised). Then revoke all active sessions - most platforms have a 'sign out all devices' option in security settings. After securing the account, check for forwarding rules in email and review recent activity for anything you didn't do.
How do I know if my email has been compromised?
Signs include password reset emails you didn't request, login alerts from unfamiliar locations, sent emails you didn't write, or contacts receiving spam from your address. Check your email's security log and look for any filters or forwarding rules that were added without your knowledge - attackers often add these to silently forward copies of your mail.
What should I do if my financial account was accessed?
Call your bank or card issuer immediately - not through a link in any email, but through the number on the back of your card or their official website. Report unauthorized transactions, freeze the account if possible, and ask for new account numbers. Then file a report with the CFPB and your local police department for documentation.
What is the difference between a data breach and being hacked?
A breach is when a company you use gets compromised and your data leaks - you weren't targeted specifically, you were just in the database. Being hacked usually means someone targeted your account directly, often using credentials from a breach. The response is different: breaches require monitoring and password changes for that service; direct account compromise requires immediate lockdown and session revocation.
Should I wipe my device if I think it's compromised?
For a phone or laptop you suspect has malware, a factory reset is the safest option if you have a backup. Don't restore from a backup made after the suspected compromise date. For most people, the risk is usually credential theft (phishing, password reuse) rather than device-level malware - change passwords first and see if that resolves the issue before wiping.
Jason

Written by Jason

Jason is a tech industry veteran in NYC who has been optimizing personal finance and digital privacy for 15 years. He uses Wealthfront for automated investing and writes about the systems he actually runs.

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Cite this guide: "Hacked? A Step-by-Step Emergency Response", jason.guide, updated 2026-08-19. https://jason.guide/guides/privacy-emergency