Case Study: a Fortune 500 financial institution reduces critical vulnerability noise with Zafran

a Fortune 500 financial institution cuts false-critical noise by 96% with Zafran

The customer, a Fortune 500 financial institution, faced a significant challenge in vulnerability management. Their security team was overwhelmed by scanner-generated CVSS and EPSS scores that labeled nearly every vulnerability as critical, leading to inefficient "panic patching." Without context for whether a vulnerable asset was actually exposed or already defended, they struggled to prioritize real risks and justify patch exceptions, creating friction with their remediation teams. They turned to the vendor, Zafran, for a solution.

Zafran provided a solution that integrated with the institution's existing security tools and scanners to deliver a contextual view of risk. By using live telemetry from controls like EDR, WAF, and NGFW, Zafran identified which vulnerabilities were already mitigated, allowing the team to confidently deprioritize them. This implementation resulted in a 96% reduction in false-critical vulnerabilities, reclassified over 50,000 critical findings, and identified 23,000 vulnerabilities that could be mitigated by reconfiguring existing controls. Zafran enabled the institution to move to a scalable, risk-based vulnerability management program.