Was a huge cyberattack just stopped by one guy?

A programmer may have saved the internet from big trouble.

View in browser|nytimes.com Continue reading the main story April 6, 2024 While doing routine maintenance on open-source software, a Microsoft engineer in San Francisco discovered someone was probably trying to gain access to computers all over the world. Now tech leaders and cybersecurity researchers are hailing him as a hero. Jon Han "This could have been the most widespread and effective backdoor ever planted in any software product," one cybersecurity expert said. → Sign up for the Evening newsletter. Catch up on the biggest news, and wind down to end your day. Get it in your inbox Continue reading the main story ADVERTISEMENT Continue reading the main story Need help? Review our newsletter help page or contact us for assistance. You received this message because you signed up for updates from The New York Times. To stop receiving From The Times, unsubscribe. To opt out of other promotional emails from The Times, including those regarding The Athletic, manage your email settings. To opt out of updates and offers sent from The Athletic, submit a request. Subscribe to The TimesGet The New York Times app Connect with us on: Change Your EmailPrivacy PolicyContact UsCalifornia Notices The New York Times Company. 620 Eighth Avenue New York, NY 10018