Has anyone seen or heard anything about HDMI security vulnerabilities?https://git.cuvoodoo.info/kingkevin/board/src/branch/hdmi_firewall/README.md
HDMI vulnerabilities are not a big deal today, but they could become a factor in the future. The post suggests that someone could compromise a display/projector through HDMI as a guest. I think it's far more likely that someone could compromise a projector/display/personal monitor/switcher/transmitter within their organization to infect computers within the organization or guests from outside the organization. I'm sure a motivated actor could find and exploit a vulnerability in one of the myriad end-user-facing HDMI devices on the market today (or "yesterday")
The most apparent problem with the 'firewall' proposed is that it breaks HDCP - this seems like something that needs to be solved at the standards level.
There's a bunch of intelligent folks discussing this at Hacker News too.https://news.ycombinator.com/item?id=31828193