# Security Alert! *#thirdweb* By [moradi1990.eth](https://paragraph.com/@moradi1990.eth) Β· 2023-12-05 --- 🚨 Security Alert! On Nov 20th, 2023, **#thirdweb** discovered a vulnerability in a crucial open-source library in the **#Web3** industry. This affects various smart contracts, including some pre-built by us. πŸ”’ No exploitation detected yet, but if you created contracts before Nov 22nd, 2023, at 7pm PT, take action now!πŸš€ πŸ›  Mitigation tool & guide are here to help: πŸ”— [https://mitigate.thirdweb.com](https://mitigate.thirdweb.com) πŸ”— [https://blog.thirdweb.com/security/contract-mitigation/](https://blog.thirdweb.com/security/contract-mitigation/) πŸŽ“ [https://www.youtube.com/watch?v=kYy6uDmIQQA](https://www.youtube.com/watch?v=kYy6uDmIQQA) βœ…Contracts created after Nov 22nd, 7pm PST are safe! Spread the love with ❀ & πŸ” Stay safe --- *Originally published on [moradi1990.eth](https://paragraph.com/@moradi1990.eth/security-alert)*