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ATT&CK techniqueCollection (Mobile)

T1636.002 Call Log

Collection (Mobile)MobileSub-technique

As of 2026-10-16, T1636.002 (Call Log) appears in 11 tracked threats, first reported 2026-02-16 and most recently 2026-10-15, with linked actors including NSO Group; it most often appears alongside T1636.004 (SMS Messages).

Tracked threats
111 critical, 9 high
First seen
2026-02-16
Last seen
2026-10-15
Threat actors
1In the threats using it
Detection rules
19Blue tier and above

Data as of:

Activity timeline

T1636.002 first appeared in tracked threats on and was most recently reported on . The busiest month was 2026-02 with 3 reports, and 11 of the 11 threats were reported in the twelve months to 2026-10.

How adversaries use it

T1636.002 Call Log is catalogued by MITRE ATT&CK under the Collection (Mobile) tactic in the Mobile matrix, as a sub-technique of T1636 Protected User Data. Threadlinqs maps 11 of 2929 tracked threats (0.4%) to it; by severity that is 1 critical, 9 high.

Threats that use T1636.002 most often also use T1636.004 SMS Messages (10 threats), T1636.003 Contact List (9 threats), T1426 System Information Discovery (8 threats), T1429 Audio Capture (8 threats), T1430 Location Tracking (8 threats). These are the techniques an intrusion set tends to chain with it, so they are the natural next places to look when it is observed.

1 tracked threat actor appear in the threats that use T1636.002; the most frequent are NSO Group (1).

Mitigations

MITRE ATT&CK lists 1 mitigation for T1636.002.

Threat actors using it

Tracked threats

11 tracked threats use T1636.002.

Detection coverage

Threadlinqs maintains 19 detection rules mapped to T1636.002 (SPL 5, KQL 9, Sigma 5). Rule content is available to Blue tier accounts and above; this page shows counts only.

19 detection rules (SPL/KQL/Sigma) · Blue and above. Compare plans

Parent technique

T1636 Protected User Data — 29 tracked threats at the technique level.