Case study / Financial services

Regional bank, ransomware mid-trading day.

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.

What happened.

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.

The recovery decision.

01

Scanned 24h of snapshots

Cybersnap.io scanned every production snapshot from the prior 24 hours across the affected NAS environment. 18 snapshots analyzed in under two minutes.

02

Identified compromise window

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.

03

Validated in sandbox

Cybersnap.io booted SS-02:30 in an isolated sandbox. Integrity checks passed. Application-level verification confirmed the snapshot was usable for production resume.

04

Issued safe-resume verdict

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%.

05

Exported audit trail

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.

06

Resume executed

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.

The numbers.

Decision time
4 minutes
From recovery team request to confidence-scored safe-resume verdict.
Manual baseline
8 hours
Customer's own runbook estimate for the same decision without Cybersnap.io.
Avoided downtime cost
$432,000
At $900/min Financial Services downtime cost over the 8h gap.
Reinfections
0
No attacker reintroduction. The closest clean snapshot held.
Trading day
Saved
Production live before the markets opened. Trading proceeded normally.
Examiner audit
Passed
The audit trail exported by Cybersnap.io was accepted as primary evidence.
What the recovery lead said

“We had backups. We had snapshots. What we did not have was a way to know which snapshot was safe before we restored. Cybersnap.io closed that gap.”

— Director of Infrastructure, anonymized customer. Reference call available under NDA after a Cybersnap.io briefing.

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