# How to Check if Your AI Platform Accounts Have Been Hacked A step-by-step guide to securing your ChatGPT, Claude, and Perplexity accounts. - **Source:** [cybersecurity | TechCrunch](https://brifing.si/source/73fbb25c-5e90-44c9-9a24-7906dc3436cd) - **Published:** 2026-08-15 - **Topic:** [Data & AI](https://brifing.si/c/data-ai) - **Original article:** - **On Brifing:** https://brifing.si/s/ef27f632-252b-4939-a58d-0dd75fe656ef ## AI Platform Account Security AI platforms can be targeted by hackers just like any other online service. To determine if your account on popular AI platforms like ChatGPT, Claude, and Perplexity has been compromised, you need to follow specific steps. Each platform offers different methods for viewing active sessions and detecting suspicious devices. Using unique passwords and multi-factor authentication (MFA) is recommended to ensure account security. ## Checking Your ChatGPT Account To check the security of your ChatGPT account, open the platform in your computer browser. Click on your username in the bottom left corner, go to 'Settings,' and then 'Security and Login.' In the 'Active Sessions' section, you can see the devices logged into your account. If you spot an unfamiliar device, you can log out of that single device or use the 'Log Out All' option. You need to log out of your account to change your password. ## Changing Your ChatGPT Password To change your ChatGPT password, first log out of your account. On the platform's website, click the 'Log In' button and enter your email address. Select 'Forgot Password' and proceed. ChatGPT will send you an email containing a six-digit code. Enter this code on the login page to create a new password. You can also click 'reset your password' in the email to view official instructions. ## Account Security on Claude Claude uses a login link sent to your email address instead of a password, so it doesn't offer MFA. To check your account security, open Claude in your computer browser. Click on your username in the bottom left corner and go to 'Settings' > 'Account.' In the 'Active Sessions' section, you can see devices logged into your account. Hover over an unfamiliar device, click the three dots on the right, and select 'Log Out' or 'Terminate.' ## Logging Out of All Devices on Claude To log out of all devices on Claude, use the 'Log Out of All Devices' option. After this, you can log back in using your email address. Claude will send you an email with a login link. Since it doesn't use passwords, there's no option to change one. This method provides a simple yet effective solution for enhancing account security. ## Checking Your Perplexity Account Perplexity doesn't offer a feature to view active sessions. If you suspect your account has been compromised, open Perplexity in your browser and click on your username in the bottom left corner. Go to 'All Settings' and click 'Sign Out of All Sessions,' then confirm. After this, you can log back in using your email address. ## Logging Into Perplexity To log into Perplexity, enter your email address. The platform will send you an email with a unique six-digit code. Enter this code on the website to log in, or click the 'Sign In' button in the email for direct access. Perplexity simplifies the user experience by eliminating passwords but doesn't compromise on security measures. ## Security Measures for AI Platforms Using multi-factor authentication (MFA) is crucial for securing accounts on AI platforms. While ChatGPT and Perplexity offer MFA, Claude ensures security through email links. Regularly checking active sessions and logging out of suspicious devices are important steps for account security. Users must take these precautions to protect their accounts effectively. ## Sources covering this story - https://techcrunch.com/2026/08/15/how-to-tell-if-your-ai-platforms-accounts-have-been-hacked/ — --- _Summary written by Brifing from the original reporting. Copyright in the original article belongs to its publisher; read the full piece at the link above._