Post #2688076
2026-04-23 19:09 UTC
@goncalor@infosec.exchange
They will "secure" it in an open S3 bucket. So no bigger threat than corpo storage. 🤷
Looking at the pictures, it seems to block any backchannels to the computer - or preventing the display from (silently) presenting itself for "additional options" to the computer (sound input/output, mirroring the signal to another wireless display).
But if this works like the "usb condom" that has no physical data wire connectors or if DP/HDMI needs "magic chips" for that? 🔮
@faebudo@ioc.exchange @campuscodi@mastodon.social
Replies (1)
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@RoganDawes@infosec.exchange 2026-04-23 19:54
@ifrauding@don.linxx.net @goncalor@infosec.exchange @faebudo@ioc.exchange @campuscodi@mastodon.social afaik, the only bidirectional data channels in a display cable are hdmi-cec, and DDI (basically i2c). I’d be interested to see the threat model that they are targeting with this device, that can’t be circumvented by just unplugging it. Seems like a very particular setup, where eg the computer itself is physically secure, but the display is not.