Microsoft GroupMe Access Control Error Vulnerability

Microsoft GroupMe is a confidential group messaging service from Microsoft. Users can conduct and manage SMS group chat via cell phone SMS or client. Microsoft GroupMe suffers from an Access Control Error vulnerability that stems from improper access control. An attacker could exploit the...

Criminal secure messaging system takedown: 6500+ arrests and €900 million+ seized

In 2020, we reported on how law enforcement managed to compromise a secure communications system set up by and for criminals. Now, Europol has published a progress report showing the enormous impact the infiltration of the encrypted communications tool EncroChat made. EncroChat, a company based i...