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ATT&CK techniqueInitial Access (Mobile)

T1660 Phishing

Initial Access (Mobile)Mobile

As of 2026-10-05, T1660 (Phishing) appears in 53 tracked threats, first reported 2026-02-16 and most recently 2026-09-28, with linked actors including NSO Group, Outsider, Outsider Enterprise; it most often appears alongside T1418 (Software Discovery).

Tracked threats
533 critical, 42 high, 5 medium, 2 low
First seen
2026-02-16
Last seen
2026-09-28
Threat actors
10In the threats using it
Detection rules
117Blue tier and above

Data as of:

Activity timeline

T1660 first appeared in tracked threats on and was most recently reported on . The busiest month was 2026-07 with 13 reports, and 53 of the 53 threats were reported in the twelve months to 2026-09.

How adversaries use it

T1660 Phishing is catalogued by MITRE ATT&CK under the Initial Access (Mobile) tactic in the Mobile matrix. Threadlinqs maps 53 of 2623 tracked threats (2%) to it; by severity that is 3 critical, 42 high, 5 medium, 2 low.

Threats that use T1660 most often also use T1418 Software Discovery (29 threats), T1513 Screen Capture (27 threats), T1646 Exfiltration Over C2 Channel (27 threats), T1426 System Information Discovery (24 threats), T1437 Application Layer Protocol (24 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.

10 tracked threat actors appear in the threats that use T1660; the most frequent are NSO Group (3), Outsider (2), Outsider Enterprise (2), APT38 (1), Balonx (1).

Mitigations

MITRE ATT&CK lists 2 mitigations for T1660.

Threat actors using it

Tracked threats

The 30 most recent of 53 tracked threats that use T1660.

Detection coverage

Threadlinqs maintains 117 detection rules mapped to T1660 (SPL 40, KQL 39, Sigma 38). Rule content is available to Blue tier accounts and above; this page shows counts only.

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