UK spy agency releases malware-blocking gadget for HDMI and DisplayPort cables — SilentGlass blocks malicious traffic traveling between display and computer

The UK's GCHQ has introduced SilentGlass, a device that blocks malicious traffic between a display and a PC, aimed at protecting government estates in high-threat environments. The design has been licensed to Goldilock Labs, a cybersecurity firm, for global availability. While some experts question the necessity of SilentGlass for common cyberattacks, vulnerabilities in HDMI and DisplayPort could be exploited by advanced adversaries targeting sensitive information. The gadget is now available for purchase, primarily beneficial for users dealing with state secrets and confidential data.