fullscreen protection

Fullscreen protection in Microsoft Edge is a security feature designed to block scareware and tech-support scams that hijack browsers by entering fullscreen mode. The Scareware Blocker, now expanding in the Canary channel, can detect scam sites and optionally share threat data with Defender SmartScreen for broader defense. This tag covers discussions about how fullscreen protection works, its integration with Windows security tools, and the privacy trade-offs of networked threat sharing. Topics include scam site blocking, browser hijacking prevention, and the evolution of local protection into a collaborative defense system.