When exposed credentials lead to account takeovers, organizations can’t afford to waste time chasing false positives. This case study showcases how public sector, manufacturing, and automotive companies used HackNotice’s First Party Monitoring to detect real threats without drowning in dark web noise. Through active user filtering, infostealer malware tagging, and alert deduplication, each company streamlined its response process—receiving only the most relevant, actionable alerts tied to current employees.