Every time you come across a double free bug or some complex concurrency issue that gives an attacker arbitrary write access to a process, remember that you mig

Every time you come across a double free bug or some complex concurrency issue that gives an attacker arbitrary write access to a process, remember that you might have been looking at a back door. Someone has an off-by-one error on an array access: is that a back door? Why do you think a backdoor is somehow noticeable in the code?