Microsoft security researchers have discovered a new backdoor malware that uses the OpenAI Assistants API as a covert command-and-control channel. The company's Detection and Response Team (DART) ...

Microsoft releases new Windows Defender update packages very frequently to protect against various newly discovered malware. Once a while every three months or so, the company also pushes out these ...

In an emergency out-of-band update released late last night, Microsoft fixed a vulnerability in the Microsoft Malware Protection Engine discovered by two Google security experts over the weekend, and ...

Overview: Lightweight antivirus software improves protection without reducing speed on older Windows computers ...