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Account Security
8 min

Account Hacked? Here's Exactly What to Do Right Now

Step-by-step emergency guide for when your account gets hacked. Change passwords, check active sessions, enable 2FA, contact support, and secure linked accounts.

LOCK.PUB
2026-01-12
Account Hacked? Here's Exactly What to Do Right Now

Account Hacked? Here's Exactly What to Do Right Now

You notice something wrong — a password that no longer works, a login alert from an unfamiliar location, or messages you never sent. Your account may have been compromised. What you do in the next few minutes matters more than anything you did before.

This guide provides a clear, prioritized checklist to regain control and limit the damage.

Step 1: Change Your Password Immediately

If you can still log in, change your password before the attacker locks you out.

What makes a strong replacement password:

  • At least 16 characters
  • Mix of uppercase, lowercase, numbers, and symbols
  • Not used on any other account
  • Not based on personal information (birthdays, pet names, addresses)

If you cannot log in:

  • Use the "Forgot password" link on the login page
  • Check your recovery email or phone for the reset link
  • If the attacker changed your recovery options, skip to Step 5 (Contact Support)

Store your new password in a password manager — not in a text message, not in a notes app. For temporary secure storage, a password-protected memo on LOCK.PUB can hold your credentials safely until you set up a password manager.

Step 2: Check and Terminate Active Sessions

Most major services let you see where your account is currently logged in. Find this setting and sign out of every session you do not recognize.

Service Where to check
Google myaccount.google.com > Security > Your devices
Apple appleid.apple.com > Devices
Facebook Settings > Security and login > Where you're logged in
Instagram Settings > Security > Login activity
X/Twitter Settings > Security > Sessions
Microsoft account.microsoft.com > Devices

After reviewing, use the "Sign out of all sessions" option if available. This forces the attacker to re-authenticate, which they cannot do if you have already changed the password.

Step 3: Enable Two-Factor Authentication

Once you have regained access and changed the password, immediately enable 2FA to prevent the attacker from getting back in.

Recommended method: Use an authenticator app (Google Authenticator, Authy) rather than SMS. SMS can be intercepted through SIM swapping attacks.

Quick setup:

  1. Go to your account's security settings
  2. Select "Two-factor authentication" or "2-step verification"
  3. Choose "Authenticator app"
  4. Scan the QR code with your authenticator app
  5. Save the backup codes in a secure location

If you need a detailed walkthrough, see our complete 2FA setup guide.

Step 4: Check for Unauthorized Changes

Hackers often do more than just read your messages. Review these areas:

Account settings

  • Recovery email and phone — Has the attacker added their own recovery options?
  • Forwarding rules — In email accounts, check if messages are being forwarded to an unknown address
  • Connected apps — Revoke access to any third-party apps you do not recognize
  • Profile information — Check if your name, bio, or profile picture was changed

Financial connections

  • Linked payment methods — Check for unauthorized credit cards or bank accounts
  • Recent transactions — Look for purchases or transfers you did not make
  • Subscription changes — Verify no new subscriptions were created

Linked accounts

  • "Sign in with Google/Facebook/Apple" — If the hacked account is used to log into other services, those are compromised too
  • Check each linked service individually and change passwords there as well

Step 5: Contact the Service's Support Team

If you cannot regain access through normal recovery methods, contact support directly.

Information to have ready:

  • Your account email or username
  • The approximate date you lost access
  • Any recent account activity you can describe
  • Government-issued ID (some platforms require this for identity verification)
  • Previous passwords you have used (some services use this to verify ownership)

Support links for major platforms

Platform Recovery page
Google accounts.google.com/signin/recovery
Facebook facebook.com/hacked
Instagram help.instagram.com (Hacked Accounts)
X/Twitter help.twitter.com (Account access)
Apple iforgot.apple.com
Microsoft account.live.com/acsr

Step 6: Scan All Your Devices

The account may have been compromised through malware on one of your devices. Run a full security scan:

  • Computer: Run a full antivirus scan with updated definitions
  • Phone: Check for unfamiliar apps and remove them. Consider a factory reset if you suspect deep compromise
  • Browser: Clear all saved passwords and cookies. Check for suspicious browser extensions and remove them
  • Check for keyloggers: Antivirus software can detect most keyloggers, but also look for unusual processes in your task manager

Step 7: Check If Your Credentials Were in a Data Breach

Visit Have I Been Pwned and enter your email address. This free service tells you whether your credentials appeared in known data breaches.

If your email shows up in a breach:

  • Change the password on every account that used that email
  • Use a unique password for each account going forward
  • Enable 2FA everywhere possible

Step 8: Notify Your Contacts

If the attacker sent messages from your account, let your contacts know. This prevents them from falling for phishing messages that appear to come from you.

A quick message works:

"My account was recently compromised. If you received any unusual messages from me, please do not click any links in them. I have secured my account."

Send this through a different channel — if your iMessage or Messenger was compromised, use email or a phone call instead.

Prevention Checklist for the Future

After recovering your account, take these steps to prevent it from happening again:

Action Priority
Use a unique password for every account Critical
Enable 2FA on all important accounts Critical
Use a password manager High
Check haveibeenpwned.com periodically Medium
Review connected apps quarterly Medium
Keep devices and software updated High
Be cautious with links in emails and messages High

Share Sensitive Recovery Info Safely

During account recovery, you may need to share temporary passwords or recovery codes with a trusted person who is helping you. Instead of sending these through a messaging app where they remain in chat history, use LOCK.PUB to create a password-protected memo with a short expiration time. The credentials disappear after the set period, leaving no trace in anyone's message history.

Create a Secure Memo -->

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Account Hacked? Here's Exactly What to Do Right Now | LOCK.PUB Blog