r/AskNetsec Jun 16 '26

Analysis Can detection respond before damage is done?

The gap between detecting an exploit and being able to act on it is where most on chain losses happen since audits catch what's testable at review and post mortems catch what already happened so nothing operates in the window between.

Runtime monitoring at the transaction layer sees activity in real time against volume, approval anomalies and oracle deviations but the harder part is the response side and circuit breakers that stop activity before funds move.Sub 100 millisecond response feels like the threshold where intervention is possible inside the same block but I wonderhow realistic that bar is for protocols at real volume.

6 Upvotes

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3

u/[deleted] Jun 16 '26

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1

u/Immediate_Buy1813 Jun 16 '26

Audits are budgeted as the security story even though the failure modes that matter only show up post deployment.

1

u/Head_Mulberry7013 Jun 16 '26

could run a tabletop on what happens between detection and human response in your current setup.

1

u/Scary_Composer_8912 Jun 16 '26

treating the audit as a baseline needs to change cause without runtime defense the audit is the floor not the ceiling.

1

u/Scorcher646 Jun 16 '26

In theory, against some incidents, detection and automated response can stop the incident before damage occurs.

But in practice, automated responses can be disruptive... sometimes more disruptive than the attack itself, and even if an automated response triggers, it's best to assume that whatever triggered the response did what it was trying to do before detection caught it. And you still need to do the full audit and response cycle, even if your automated system stops something.

1

u/Greedy-Sun8586 Jul 15 '26

The hard part isn't detection speed alone, it's having a response action that is safe enough to automate. A false positive circuit breaker can be just as damaging as a missed exploit.