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Cloud detection practiceAdvanced

Cloud Storage Exfiltration Detection

Cloud storage exfiltration detection looks for unusual reads, downloads, copies, sharing changes, presigned access, cross-account movement, and data-transfer patterns.

Framework mapping

MITRE ATT&CK® Enterprise mapping

Catalog v19.2
sub-techniqueT1567.002 — Exfiltration to Cloud Storage

Tactics: Exfiltration

Platforms: Windows, Linux, macOS, SaaS

Relationship: detection coverage

Open the official ATT&CK object ↗

Editorial mapping of an inherited BMC article to related Enterprise ATT&CK behavior, control, evidence, architecture, or risk context. Mapping roles state the relationship and do not assert equivalence unless labeled direct.

MITRE D3FEND connection

Related defensive techniques

Inferred and experimental: These relationships are generated from D3FEND graph paths. They are hypotheses for analysis, not proof of prevention, detection, or control effectiveness.

MITRE D3FEND™ and the D3FEND logo are trademarks of The MITRE Corporation. MITRE ATT&CK® and ATT&CK® are registered trademarks of The MITRE Corporation.

What it means

Cloud storage exfiltration detection looks for unusual reads, downloads, copies, sharing changes, presigned access, cross-account movement, and data-transfer patterns.

Why it matters

Cloud data theft may use authorized APIs and credentials, so detection must consider identity, volume, sensitivity, destination, and baseline behavior.

Practical focus

  • Enable data-access logging
  • Identify sensitive stores and normal access patterns
  • Correlate identity, network, and sharing changes
  • Test alerting with representative scenarios

Common mistakes

  • Monitoring configuration changes but not object access
  • Alerting only on large transfers
  • Ignoring presigned and delegated access
  • Treating every administrative read as normal

Certification relevance

This subject appears in or supports the following certification bodies of knowledge:

GIAC GPCSGIAC GCLDISC2 CCSPCompTIA Cloud+AWS Cloud Practitioner

Authoritative sources