

The software doesnt have interenet access and doesnt display an account, only Adobe got info about the new username with the old email and some info. It was that link opened by the software. But yes, could have been appdata too, unless BCU cleans that


Tox did their own insecure crypto and got roasted by the Wireguard dev, now they are apparently rewriting it.
I agree that Matrix is complex but personally never had issues with key verification. Just try to restart it, maybe on the other device?