Plug-and-play hardware mitigation SilentGlass released to block malicious video interface attacks
Summary
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The UK National Cyber Security Centre (NCSC) has publicly released SilentGlass, a plug-and-play hardware device designed to block malicious or unexpected content at the HDMI and DisplayPort interfaces between source devices and monitors. Deployed first on UK government estates and now available globally, SilentGlass is positioned as a low-cost mitigation against attacks leveraging compromised or malicious video streams to exfiltrate data, inject payloads, or pivot into protected networks. The device is approved for use in high-threat environments and is manufactured by Goldilock Labs in partnership with Sony UK.
Timeline
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22.04.2026 18:00 1 articles · 1h ago
SilentGlass released as commercial mitigation against malicious video interface attacks
The NCSC publicly released SilentGlass on April 22 at CYBERUK 2026, a plug-and-play hardware device designed to block malicious or unexpected content at HDMI and DisplayPort interfaces. The device, developed in partnership with Goldilock Labs and Sony UK, has been deployed on UK government estates and is now commercially available for global adoption. It is approved for use in high-threat cybersecurity environments.
Show sources
- NCSC Unveils SilentGlass, a Plug-In Device to Protect Monitors from Cyber-Attacks — www.infosecurity-magazine.com — 22.04.2026 18:00
Information Snippets
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SilentGlass is a plug-and-play hardware device that actively blocks unexpected or malicious content at HDMI and DisplayPort interfaces before it reaches the monitor.
First reported: 22.04.2026 18:001 source, 1 articleShow sources
- NCSC Unveils SilentGlass, a Plug-In Device to Protect Monitors from Cyber-Attacks — www.infosecurity-magazine.com — 22.04.2026 18:00
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The device has been deployed on UK government estates and is now commercially available for purchase and use by organizations worldwide.
First reported: 22.04.2026 18:001 source, 1 articleShow sources
- NCSC Unveils SilentGlass, a Plug-In Device to Protect Monitors from Cyber-Attacks — www.infosecurity-magazine.com — 22.04.2026 18:00
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SilentGlass was developed in collaboration with Goldilock Labs and Sony UK under a competitive licensing process led by the NCSC.
First reported: 22.04.2026 18:001 source, 1 articleShow sources
- NCSC Unveils SilentGlass, a Plug-In Device to Protect Monitors from Cyber-Attacks — www.infosecurity-magazine.com — 22.04.2026 18:00
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The NCSC warns that monitors are attractive targets due to their access to sensitive or personal data and lack of existing mitigations at the video interface layer.
First reported: 22.04.2026 18:001 source, 1 articleShow sources
- NCSC Unveils SilentGlass, a Plug-In Device to Protect Monitors from Cyber-Attacks — www.infosecurity-magazine.com — 22.04.2026 18:00
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The technology is positioned as a low-cost, easy-to-deploy solution suitable for critical national infrastructure (CNI) and risk-conscious enterprises.
First reported: 22.04.2026 18:001 source, 1 articleShow sources
- NCSC Unveils SilentGlass, a Plug-In Device to Protect Monitors from Cyber-Attacks — www.infosecurity-magazine.com — 22.04.2026 18:00