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ATT&CK techniqueCollection (Mobile)

T1636.003 Contact List

Collection (Mobile)MobileSub-technique

As of 2026-10-05, T1636.003 (Contact List) appears in 17 tracked threats, first reported 2026-02-16 and most recently 2026-09-28, with linked actors including Cyber Av3ngers, NSO Group; it most often appears alongside T1636.004 (SMS Messages).

Tracked threats
1716 high
First seen
2026-02-16
Last seen
2026-09-28
Threat actors
2In the threats using it
Detection rules
28Blue tier and above

Data as of:

Activity timeline

T1636.003 first appeared in tracked threats on and was most recently reported on . The busiest month was 2026-08 with 6 reports, and 17 of the 17 threats were reported in the twelve months to 2026-09.

How adversaries use it

T1636.003 Contact List 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 17 of 2623 tracked threats (0.6%) to it; by severity that is 16 high.

Threats that use T1636.003 most often also use T1636.004 SMS Messages (14 threats), T1660 Phishing (13 threats), T1418 Software Discovery (10 threats), T1541 Foreground Persistence (10 threats), T1513 Screen Capture (9 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.

2 tracked threat actors appear in the threats that use T1636.003; the most frequent are Cyber Av3ngers (1), NSO Group (1).

Mitigations

MITRE ATT&CK lists 1 mitigation for T1636.003.

Threat actors using it

Tracked threats

17 tracked threats use T1636.003.

Detection coverage

Threadlinqs maintains 28 detection rules mapped to T1636.003 (SPL 9, KQL 11, Sigma 8). Rule content is available to Blue tier accounts and above; this page shows counts only.

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

Parent technique

T1636 Protected User Data — 27 tracked threats at the technique level.