An alleged exploit for 7-Zip, claiming arbitrary code execution, was posted on Twitter by a user named @NSA_Employee39. However, 7-Zip's creator, Igor Pavlov, dismissed the exploit as fake, suggesting it was generated by AI. He pointed out inaccuracies in the code and emphasized that the exploit does not pose a genuine threat. Users are advised to remain cautious when handling unfamiliar 7-Zip archives, but overall, the exploit appears to be a hoax.