i unfortunately don’t have the link on hand, but i once saw this video of a pentesting team doing data exfiltration with qr codes. they converted the file to base64, split it into chunks that would be easy to scan on a phone, converted the base64 to a qr code, and took a video with their phone to reassemble later.
i feel the same honestly. especially with just how much news there is coming out about everything all the time, it’s hard keeping up and figuring out what’s true and what’s just incorrect fearmongering.