The Exclusion Ratchet: False-Positive Suppression Accumulates and Persists in Detection Rule Repositories
Research quantifies how SOC teams' individually rational false-positive suppressions compound over time into significant blind spots — a systemic detection-debt problem most organisations never measure.
Summary written by editorial AI · Source link below
arXiv:2608.31062v1 Announce Type: new Abstract: When a rule produces too many false alarms an analyst adds an exclusion, and the rule thereafter declines to alert in that circumstance. Each such decision is locally reasonable; what becomes of them collectively is not known. Recent longitudinal work established that curation does not converge, but measured restoration time only for revisions that were later reverted -- a measure silent about narrowing that is never undone. We measure that. Acros
Editorial Analysis
Most SOCs accumulate exclusion debt without visibility into its aggregate effect, silently widening the gap between assumed and actual detection coverage.
Schedule a quarterly review of detection-rule exclusions to quantify cumulative coverage loss and retire or refactor degraded rules.
Detection rules quietly lose effectiveness as analysts suppress false positives — an unmeasured risk in most security operations.
Forward-looking interpretation drafted by editorial AI under human review — not a reproduction of the source. See methodology.
External link — opens at arXiv Crypto & Security in a new tab.
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