Carmakers ditch AM radio, professor's ChatGPT mishap & TSA face-scanning tech

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Plus, phone buzzing all night? I talk to a guy that wants to turn off his notifications to sleep but still get calls from his kids. Also, safeguard your identity with username protection tips. Microsoft scans cloud files, gamer mom’s trash-talking triumph and explore Harvard’s free online classes. 

🚫 Blocked or not? Instagram won’t tell you if someone blocks you. Here’s how to check: Log out of your account and try visiting their profile. Just type instagram.com/[their username] in your browser. If you can see it logged out but not logged in, they’ve blocked you. Ouch!

Are you revealing too much with your username?

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Your username, not your password, serves as your first line of defense against hackers. Here’s how to make it strong, in one minute.