heuristics are imperfect; validation checks to make sure that you've found what you're looking for. the rub there, though, is that validation is extremely rigi

heuristics are imperfect; validation checks to make sure that you've found what you're looking for. the rub there, though, is that validation is extremely rigid and heuristics aren't. an attacker could (ideally) change a single bit in their signature to falsely pass validation but a heuristic will probably still catch it.