A US Midwest regional bank, $2B AUM, 1,200 employees, multiple branches. Production NAS hit at 02:14. Trading, core banking, settlement workloads all exposed. Customer identity withheld under confidentiality.
At 02:14 the security operations team detected anomalous file activity across production NAS. Within 12 minutes, ransomware indicators surfaced across three storage volumes. Trading systems were minutes away from opening. Core banking transactions were active. Settlement files for the day were unverified. The recovery team had a decision window measured in hours, not days.
The bank had robust backup infrastructure but no production-side verification layer. Restoring from backup would have taken 6 to 8 hours by their own runbook. Their snapshot history existed but was unverified. The team could not state with confidence which snapshot was clean.
Cybersnap.io scanned every production snapshot from the prior 24 hours across the affected NAS environment. 18 snapshots analyzed in under two minutes.
The first compromise indicator appeared at SS-02:14. The closest clean snapshot before that was SS-02:30, one hour before the attack began.
Cybersnap.io booted SS-02:30 in an isolated sandbox. Integrity checks passed. Application-level verification confirmed the snapshot was usable for production resume.
4 minutes after the recovery team requested the decision, Cybersnap.io produced a confidence-scored verdict: SAFE TO RESUME from SS-02:30, confidence 94%.
The full verdict, the scan evidence, the sandbox validation log, and the confidence math were exported to the customer's audit system for examiner review.
The customer recovery team used the Cybersnap.io verdict as the green light to resume from SS-02:30. Production was live again in 4 hours total, including the verdict time.
— Director of Infrastructure, anonymized customer. Reference call available under NDA after a Cybersnap.io briefing.
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