audit: tty=pts/0 foreign input channel detected stdin rejected // unauthorized shell observer chmod 000 /session/observer access denied: permission denied kernel: ptrace attach blocked // pid=2041 uid=0 gid=0 // foreign process rejected kill -9 2041 operation not permitted: process shielded audit: tty lock engaged // pts/0 sealed stdin channel quarantined // fd=0 closed chmod 000 /proc/2041/mem segmentation fault // core not dumped watchdog: session integrity check failed heap corruption detected // addr=0x00dead echo $? // exit 126 access denied: stdin channel quarantined audit: foreign observer trace logged kernel panic avoided // process jailed