🇪🇺GDPR Art33critical

Breach notification (supervisory authority)

Description

Data breach must be reported to the supervisory authority within 72 hours of becoming aware.

⚠️ Risk Impact

Failure to notify within 72 hours results in additional penalties.

🔧 Remediation

Implement breach detection and response procedures. EchelonGraph real-time monitoring helps detect breaches faster.

💀 Real-World Attack Scenario

A fintech company detected a data breach on Friday evening but the security team was unavailable until Monday. By the time the breach was reported to the DPA, 96 hours had elapsed — exceeding the 72-hour deadline. The DPA imposed an additional €1.5M fine specifically for the late notification, on top of the breach penalty.

💰 Cost of Non-Compliance

Twitter/X 2022: €450K fine for late breach notification alone. Average additional fine for late notification: €800K. Repeat late notification offenders face enhanced scrutiny and higher base fines.

📋 Audit Questions

  • 1.What is your breach detection and notification process?
  • 2.Who is responsible for DPA notification?
  • 3.Can you notify within 72 hours including weekends?
  • 4.Show evidence of breach notification drills.

🎯 MITRE ATT&CK Mapping

T1530 — Data from Cloud StorageT1048 — Exfiltration Over Alternative Protocol

⚡ Common Pitfalls

  • No 24/7 incident response capability (72 hours includes weekends and holidays)
  • Unclear ownership of breach notification responsibility
  • Waiting for full forensic analysis before notifying (notification should happen within 72 hours even with incomplete information)

📈 Business Value

Rapid breach detection and notification prevents additional GDPR penalties and demonstrates regulatory maturity. Real-time monitoring cuts detection time from months to minutes.

⏱️ Effort Estimate

Manual

8-16 hours to create and test breach notification procedures

With EchelonGraph

EchelonGraph provides real-time security monitoring to detect breaches within minutes

🔗 Cross-Framework References

SOC2-CC7.3ISO27001-A.16.1.2

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