Threadlinqs IntelligenceStart free

ATT&CK techniqueReconnaissance

T1591 Gather Victim Org Information

ReconnaissanceEnterprise

As of 2026-10-05, T1591 (Gather Victim Org Information) appears in 92 tracked threats, first reported 2026-02-02 and most recently 2026-09-30, with linked actors including ShinyHunters, Sandworm, Scattered LAPSUS$ Hunters; it most often appears alongside T1566 (Phishing).

Tracked threats
9219 critical, 39 high, 30 medium, 1 low
First seen
2026-02-02
Last seen
2026-09-30
Threat actors
56In the threats using it
Detection rules
60Blue tier and above

Data as of:

Activity timeline

T1591 first appeared in tracked threats on and was most recently reported on . The busiest month was 2026-07 with 38 reports, and 92 of the 92 threats were reported in the twelve months to 2026-09.

How adversaries use it

T1591 Gather Victim Org Information is catalogued by MITRE ATT&CK under the Reconnaissance tactic in the Enterprise matrix. Threadlinqs maps 92 of 2623 tracked threats (3.5%) to it; by severity that is 19 critical, 39 high, 30 medium, 1 low.

Threats that use T1591 most often also use T1566 Phishing (52 threats), T1567 Exfiltration Over Web Service (51 threats), T1078 Valid Accounts (48 threats), T1036 Masquerading (47 threats), T1005 Data from Local System (45 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.

56 tracked threat actors appear in the threats that use T1591; the most frequent are ShinyHunters (6), Sandworm (4), Scattered LAPSUS$ Hunters (4), Scattered Spider (4), The Com (4).

Mitigations

MITRE ATT&CK lists 1 mitigation for T1591.

Threat actors using it

Tracked threats

The 30 most recent of 92 tracked threats that use T1591.

Detection coverage

Threadlinqs maintains 60 detection rules mapped to T1591 (SPL 19, KQL 21, Sigma 20). Rule content is available to Blue tier accounts and above; this page shows counts only.

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

Sub-techniques

  • T1591.001 Determine Physical Locations — 1 tracked threat
  • T1591.002 Business Relationships — 8 tracked threats
  • T1591.003 Identify Business Tempo — 2 tracked threats
  • T1591.004 Identify Roles — 16 tracked threats