Linux disagrees; try strings /proc/*/environ to see for yourself. On Solaris/SunOS, you could use `pargs -e $PID`. And so on. Having separate UIDs to ru

Linux disagrees; try strings /proc/*/environ to see for yourself. On Solaris/SunOS, you could use `pargs -e $PID`. And so on. Having separate UIDs to run your processes A and B under shields either one from peeking at the other's environment, though. UNIX DAC is simple and powerful enough for MOST security concerns, I would argue.