How to tell if your AI platform accounts have been hacked

Hackers can target and break into your accounts on popular AI platforms such as ChatGPT, Claude, and Perplexity, just like any other online service. If you suspect unauthorized access, each platform offers specific tools to review active sessions and secure your account. This guide walks you through the steps to detect and respond to a potential breach on these three major AI services.

Why AI account security matters

AI platforms often store sensitive conversation histories, personal data, and sometimes payment information. A compromised account can lead to data theft, identity fraud, or misuse of your AI access. As of 2025, cybersecurity experts emphasize that AI accounts are increasingly targeted because they hold valuable data and can be used to launch further attacks. Taking proactive steps to secure these accounts is essential.

How to check if your ChatGPT account has been hacked

OpenAI provides a straightforward way to see where your ChatGPT account is logged in. Open ChatGPT in your browser, click your username in the bottom-left corner, go to “Settings,” then “Security and Login,” and finally click on “Active Sessions.” You will see a list of devices and locations where your account is active. If you spot any device you don’t recognize, you can log out of that single device or choose “Log out all” to end all sessions.

If you need to change your password, you must first log out of your account. On the ChatGPT login page, click “Log in,” enter your email, then select “Forgot password” and “Continue.” ChatGPT will email you a six-digit code. Enter that code on the login page, click “Continue,” and then set a new password. You can also use the “reset your password” link in the email to follow official instructions.

How to check if your Claude account has been hacked

Anthropic’s Claude uses email-based login links instead of passwords, but you can still monitor active sessions. Open Claude in your browser, click your username in the bottom-left corner, then “Settings,” and click on “Account.” Under “Active sessions,” you’ll see a list of devices. If you see an unfamiliar session, hover over it, click the three vertical dots that appear, and select “Log out” or “Terminate.” You can also click “Log out of all devices” to revoke access everywhere.

After logging out, you can sign back in using your email address. Claude will send you a login link via email. Since Claude doesn’t use passwords, there’s no password to change, but you should ensure your email account is secure to protect your Claude access.

How to check if your Perplexity account has been hacked

Perplexity, the AI-powered search engine, does not display active sessions. If you suspect unauthorized access, go to Perplexity in your browser, click your username in the bottom-left corner, then “All settings.” Finally, click “Sign out of all sessions” and confirm. This will log you out everywhere.

To regain access, log back in with your email address. Perplexity will send you a unique six-digit code. Enter that code on the website, or click the “Sign in” button in the email to log in directly. This process ensures that any unknown devices are disconnected.

Best practices to prevent AI account hacks

To reduce the risk of unauthorized access, use unique passwords stored in a password manager for every service. Enable multi-factor authentication (MFA) wherever possible. ChatGPT and Perplexity offer MFA; Claude does not, but it relies on email-based login links, so securing your email account with MFA is critical. Regularly review active sessions and log out of devices you no longer use. Be cautious of phishing attempts that mimic login pages, and avoid using the same password across multiple platforms.

Conclusion

Checking your AI platform accounts for suspicious activity is a simple but crucial security habit. By using the built-in session management tools on ChatGPT, Claude, and Perplexity, you can quickly identify and terminate unauthorized access. Always enable MFA where available, use strong unique passwords, and stay vigilant against phishing. These steps will help keep your AI accounts—and the sensitive data they hold—secure.

FAQs

Q1: What should I do if I find an unfamiliar device logged into my ChatGPT account?
Immediately log out of that device from the “Active Sessions” page. Then change your password and enable multi-factor authentication to prevent future unauthorized access.

Q2: Can I use multi-factor authentication on Claude?
Claude does not offer MFA. Instead, it uses email-based login links. To protect your Claude account, secure your email account with MFA and use a strong, unique email password.

Q3: Does Perplexity show active sessions?
No, Perplexity does not display active sessions. If you suspect a hack, use the “Sign out of all sessions” option in settings to log out everywhere, then log back in with your email and the six-digit code sent to you.