Good morning. This is your security briefing for Sunday, November 23, 2025, covering three articles from yesterday's developments. All attribution is by the article authors, and all article analysis is automated.
Recorded Future News reports that NSO Group is appealing a court ruling that found it improperly used WhatsApp infrastructure to target 1,400 users with its Pegasus spyware. The spyware maker claims the ruling is catastrophic for its business and disrupts law enforcement operations, while WhatsApp maintains NSO must be held accountable for the illegal surveillance attacks.
EvilBytecode has released GoDefender, a Windows-based toolkit designed to detect and defend against reverse engineering techniques including debugging, virtualization, and DLL injection. While intended for educational and research purposes to protect software from analysis, the tool may also hinder legitimate security research efforts.
Simone Ragonesi introduces Magnet, a purple-team telemetry and simulation toolkit designed to generate malicious activity for testing security controls. The tool includes modules for simulating ransomware attacks, encrypting files, and deleting shadow copies, all mapped to the MITRE ATT&CK framework for red team testing and detection capability validation.