3 ms·

Nothing... but can X11 applications actually steal data from each other? I wouldn't know how to do that, but I know precious little about the X11 protocol. (

• icebraining 8y ago
  Even using two X servers under two logins, the fact is that desktop apps by default have much more freedom and therefore much more surface to attack. Even the kernel syscalls alone are not safe; exploits that elevate processes to root are not rare. You'd need to lock them down much more than just using different users. By the way, they may have an history, but nowadays I wouldn't bet on the security of the average distro vs Windows, and I say this as a dyed-in-the-wool Debian user. For example, their Desktop environment does have protections against cross-application attacks, unlike X.