(article in German) I think the EU vaccination passport is a great solution but it's led to anything that looks like a QR code being a valid vaccination passport these days, when to actually check it you'd need to scan it with the CovPass Check app and verify the name with photo ID
https://taz.de/Umgang-mit-3G-Regel/!5794110/
@noiob most of the places I've gone to (almost all in Austria/Germany) simply checked if I had two doses of something, not actually scanning the code, so it would have been very easy to make something look like an app with the right info.
I've only had it been scanned since the pass became mandatory in many places back here in France though.
thinking about making a fake vaccination passport with a joke QR code and seeing if anyone will notice, though that's probably a crime so I probably won't