Not symmetric at all.
There are countless bugs to fund.
If the offender runs these tools, then any bug they find becomes a cyberweapon.
If the defender runs these tools, they will not thwart the offender unless they find and fix all of the bugs.
Any vs all is not symmetric
How do bug bounties change the calculus? Assuming rational white hats who will report every bug which costs fewer LLM tokens than the bounty, on expectation.
LLMs effectively move us from A to B:
A) 1 cyber security employee, 1 determined attacker
B) 100 cyber security employees, 100 determined attackers
Which is better for defender?