It's actually incredibly useful to have apps like window managers or apps that rely on manipulating user input like xcape read another apps data. In fact such a

It's actually incredibly useful to have apps like window managers or apps that rely on manipulating user input like xcape read another apps data. In fact such are still possible just 10x as complicated as they now involve writing awful little programs in some combination of c and yaml instead of a dead simple single line shell invocation of a program. See https://gitlab.com/interception/linux/tools https://gitlab.com/interception/linux/tools The fact that this can work at all seems to suggest that its just as possible for malicious code running as user to compromise your security and the only thing actually broken is useful apps.