# T1591 Gather Victim Org Information

> 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:** 92 (19 critical, 39 high, 30 medium, 1 low)
- **First seen:** 2026-02-02
- **Last seen:** 2026-09-30
- **Threat actors:** 56
- **Detection rules:** 60 (counts only; Blue tier and above)

## Key facts

- **ID:** T1591
- **Framework:** MITRE ATT&CK
- **Tactics:** Reconnaissance
- **Matrix:** Enterprise
- **Data as of:** 2026-10-05
- **MITRE:** https://attack.mitre.org/techniques/T1591/

## Activity timeline

T1591 first appeared in tracked threats on 2026-02-02 and was most recently reported on 2026-09-30. 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](https://intel.threadlinqs.com/technique/T1566) (52 threats), [T1567 Exfiltration Over Web Service](https://intel.threadlinqs.com/technique/T1567) (51 threats), [T1078 Valid Accounts](https://intel.threadlinqs.com/technique/T1078) (48 threats), [T1036 Masquerading](https://intel.threadlinqs.com/technique/T1036) (47 threats), [T1005 Data from Local System](https://intel.threadlinqs.com/technique/T1005) (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](https://intel.threadlinqs.com/actor/ShinyHunters) (6), [Sandworm](https://intel.threadlinqs.com/actor/Sandworm) (4), [Scattered LAPSUS$ Hunters](https://intel.threadlinqs.com/actor/Scattered%20LAPSUS%24%20Hunters) (4), [Scattered Spider](https://intel.threadlinqs.com/actor/Scattered%20Spider) (4), [The Com](https://intel.threadlinqs.com/actor/The%20Com) (4).

## Mitigations

MITRE ATT&CK lists 1 mitigation for T1591.

- [M1056 Pre-compromise](https://attack.mitre.org/mitigations/M1056/)

## Threat actors using it

- [ShinyHunters](https://intel.threadlinqs.com/actor/ShinyHunters) — 6
- [Sandworm](https://intel.threadlinqs.com/actor/Sandworm) — 4
- [Scattered LAPSUS$ Hunters](https://intel.threadlinqs.com/actor/Scattered%20LAPSUS%24%20Hunters) — 4
- [Scattered Spider](https://intel.threadlinqs.com/actor/Scattered%20Spider) — 4
- [The Com](https://intel.threadlinqs.com/actor/The%20Com) — 4
- [UNC6040](https://intel.threadlinqs.com/actor/UNC6040) — 4
- [APT28](https://intel.threadlinqs.com/actor/APT28) — 3
- [FSB Center 16](https://intel.threadlinqs.com/actor/FSB%20Center%2016) — 3
- [Forest Blizzard](https://intel.threadlinqs.com/actor/Forest%20Blizzard) — 3
- [Static Tundra](https://intel.threadlinqs.com/actor/Static%20Tundra) — 3
- [UNC5537](https://intel.threadlinqs.com/actor/UNC5537) — 3
- [UNC6240](https://intel.threadlinqs.com/actor/UNC6240) — 3

## Tracked threats

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

- [Insiders for Hire: Underground Market for Employee Access Expands Beyond Privileged IT Roles](https://intel.threadlinqs.com/threat/TL-2026-2799) — medium — 2026-09-30
- [AI-Powered Cyber Attacks: Emerging TTPs Across Phishing, Deepfake BEC, Polymorphic Malware, and Prompt…](https://intel.threadlinqs.com/threat/TL-2026-2668) — medium — 2026-09-26
- [Vexy Ransomware Claims Data-Extortion Attack on Majani Insurance Brokers (Kenya)](https://intel.threadlinqs.com/threat/TL-2026-2713) — medium — 2026-09-25
- [Vexy Ransomware Claims Quy Nhon University (Vietnam) — New Group, 50GB Exfiltrated](https://intel.threadlinqs.com/threat/TL-2026-2598) — high — 2026-09-21
- [France Dark Web Threat Landscape: Ransomware and Hacktivist Activity Surges 4x Over 24 Months](https://intel.threadlinqs.com/threat/TL-2026-2564) — high — 2026-09-18
- [Revolut Discloses Data Breach via Government-Impersonation Social Engineering, Exposing Customer Financial…](https://intel.threadlinqs.com/threat/TL-2026-2498) — high — 2026-09-14
- [Passkey-Themed Help Desk Phishing Hijacks Microsoft 365 Cloud Accounts for Data Exfiltration](https://intel.threadlinqs.com/threat/TL-2026-2472) — high — 2026-09-13
- [Iran Exploits SS7 Roaming Infrastructure and Commercial Ad-Tech to Track US Military Smartphones During…](https://intel.threadlinqs.com/threat/TL-2026-2411) — critical — 2026-09-09
- [Emperador ransomware group claims breach of Uniguaçu (Brazilian education sector)](https://intel.threadlinqs.com/threat/TL-2026-2207) — medium — 2026-08-29
- [Silent Ransom Group (Luna Moth) Targets US Law Firms via IT Support Impersonation and Physical Intrusion](https://intel.threadlinqs.com/threat/TL-2026-2176) — high — 2026-08-28
- [Hospital for Sick Children (SickKids) Data Breach Exposes Employee Information via Third-Party Software…](https://intel.threadlinqs.com/threat/TL-2026-2106) — medium — 2026-08-21
- [Ransomware Extortion Campaigns Shift Targeting to Mid-Level IT and Business Managers, Zscaler ThreatLabz Finds](https://intel.threadlinqs.com/threat/TL-2026-1957) — medium — 2026-08-09
- [Autonomous AI Agent Supply-Chain Attack via FOSS Social Engineering — AISI Cyber Evaluation Incident…](https://intel.threadlinqs.com/threat/TL-2026-1877) — high — 2026-08-04
- [Alleged Żabka Polska Breach: 541K Jira Issues, 230K IT Tickets, 89 GitLab Repos, and…](https://intel.threadlinqs.com/threat/TL-2026-1834) — high — 2026-08-03
- [SplitVPN (formerly NotVPN) "No-Logs" VPN Breach Exposes 58 Million Connection Logs, 23.4M User Records](https://intel.threadlinqs.com/threat/TL-2026-1823) — high — 2026-08-02
- [Alleged Revolut Data Breach — Unverified Threat-Actor Claim of 75M-User Financial Dataset for Sale ($500…](https://intel.threadlinqs.com/threat/TL-2026-1819) — medium — 2026-08-02
- [CVE-2026-17059: Keycloak Admin REST API Broken Object-Level Authorization Exposes User PII](https://intel.threadlinqs.com/threat/TL-2026-1796) — medium — 2026-07-31
- [Russian TA488 (Void Blizzard / Laundry Bear) Exploits Exchange OWA Zero-Day (CVE-2026-42897) with OWAReaper…](https://intel.threadlinqs.com/threat/TL-2026-1763) — critical — 2026-07-29
- [Amazon: North Korea's Sapphire Sleet (Stardust Chollima/UNC1069) Compromises Axios, Debug, Chalk, and…](https://intel.threadlinqs.com/threat/TL-2026-1760) — critical — 2026-07-29
- [Mirage Kitten (UNC1549/Smoke Sandstorm/Nimbus Manticore) Deploys New NightLedger Backdoor and…](https://intel.threadlinqs.com/threat/TL-2026-1741) — high — 2026-07-28
- [Wrench Attacks: Physical Coercion Bypasses Cryptocurrency Wallet Encryption Amid 33% YoY Surge in H1 2026](https://intel.threadlinqs.com/threat/TL-2026-1737) — high — 2026-07-28
- [Proofpoint 2026 AI-Era Ransomware Report: 65% of Victims Report AI Increased Attack Effectiveness](https://intel.threadlinqs.com/threat/TL-2026-1702) — medium — 2026-07-25
- [KARR Bluetooth Vulnerability Lets Nearby Attackers Unlock and Immobilize Over 2 Million Cars](https://intel.threadlinqs.com/threat/TL-2026-1699) — high — 2026-07-25
- [Iran Exploits SS7 Cellular Roaming Protocol and Commercial Ad-Tech Location Data to Track and Target US…](https://intel.threadlinqs.com/threat/TL-2026-1673) — high — 2026-07-24
- [Kimsuky (APT43) Supply-Chain Espionage Campaign Compromises South Korean Groupware Vendors, Deploys New…](https://intel.threadlinqs.com/threat/TL-2026-1643) — high — 2026-07-22
- [Upbound Group Data Theft Enables $13M in Fraudulent Acima Lease-to-Own Fraud (Q2 2026)](https://intel.threadlinqs.com/threat/TL-2026-1634) — medium — 2026-07-22
- [Apple Hide My Email Flaw Exposed Real Email Addresses via Spam-Filter/Bounce Triggering](https://intel.threadlinqs.com/threat/TL-2026-1628) — critical — 2026-07-22
- [Apple Hide My Email Address-Disclosure Flaw: Year-Long Unpatched Bounce/NDR Leak Now Subject of Class-Action…](https://intel.threadlinqs.com/threat/TL-2026-1611) — medium — 2026-07-22
- [Snowpick: Open-Source Scanner Exposes Widespread Unauthenticated Data Leakage in ServiceNow Instances…](https://intel.threadlinqs.com/threat/TL-2026-1604) — medium — 2026-07-22
- [ReHub: Russian-Language Cybercrime Marketplace Sponsoring DragonForce, LockBit, CHAOS, Anubis, The…](https://intel.threadlinqs.com/threat/TL-2026-1594) — medium — 2026-07-21

## Related CVEs

CVEs referenced by the tracked threats that use T1591, most frequent first.

- [CVE-2024-1709](https://intel.threadlinqs.com/cve/CVE-2024-1709)
- [CVE-2026-21509](https://intel.threadlinqs.com/cve/CVE-2026-21509)
- [CVE-2012-1823](https://intel.threadlinqs.com/cve/CVE-2012-1823)
- [CVE-2017-11317](https://intel.threadlinqs.com/cve/CVE-2017-11317)
- [CVE-2017-3506](https://intel.threadlinqs.com/cve/CVE-2017-3506)
- [CVE-2019-18935](https://intel.threadlinqs.com/cve/CVE-2019-18935)
- [CVE-2020-12641](https://intel.threadlinqs.com/cve/CVE-2020-12641)
- [CVE-2020-1472](https://intel.threadlinqs.com/cve/CVE-2020-1472)
- [CVE-2020-35730](https://intel.threadlinqs.com/cve/CVE-2020-35730)
- [CVE-2021-22205](https://intel.threadlinqs.com/cve/CVE-2021-22205)
- [CVE-2021-34527](https://intel.threadlinqs.com/cve/CVE-2021-34527)
- [CVE-2021-42278](https://intel.threadlinqs.com/cve/CVE-2021-42278)
- [CVE-2021-42287](https://intel.threadlinqs.com/cve/CVE-2021-42287)
- [CVE-2021-44026](https://intel.threadlinqs.com/cve/CVE-2021-44026)
- [CVE-2022-40684](https://intel.threadlinqs.com/cve/CVE-2022-40684)
- [CVE-2022-42045](https://intel.threadlinqs.com/cve/CVE-2022-42045)
- [CVE-2023-22527](https://intel.threadlinqs.com/cve/CVE-2023-22527)
- [CVE-2023-23397](https://intel.threadlinqs.com/cve/CVE-2023-23397)
- [CVE-2023-27532](https://intel.threadlinqs.com/cve/CVE-2023-27532)
- [CVE-2023-27997](https://intel.threadlinqs.com/cve/CVE-2023-27997)
- [CVE-2023-38831](https://intel.threadlinqs.com/cve/CVE-2023-38831)
- [CVE-2023-43770](https://intel.threadlinqs.com/cve/CVE-2023-43770)
- [CVE-2023-7028](https://intel.threadlinqs.com/cve/CVE-2023-7028)
- [CVE-2024-11182](https://intel.threadlinqs.com/cve/CVE-2024-11182)
- [CVE-2024-1708](https://intel.threadlinqs.com/cve/CVE-2024-1708)
- [CVE-2024-21762](https://intel.threadlinqs.com/cve/CVE-2024-21762)
- [CVE-2024-21887](https://intel.threadlinqs.com/cve/CVE-2024-21887)
- [CVE-2024-21893](https://intel.threadlinqs.com/cve/CVE-2024-21893)
- [CVE-2024-23897](https://intel.threadlinqs.com/cve/CVE-2024-23897)
- [CVE-2024-2617](https://intel.threadlinqs.com/cve/CVE-2024-2617)

## 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: https://threadlinqs.com/pricing

## 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](https://intel.threadlinqs.com/technique/T1591.004) — 16 tracked threats

## Links

- Canonical page: https://intel.threadlinqs.com/technique/T1591
- All techniques: https://intel.threadlinqs.com/techniques
- Full detection coverage and IOCs: https://intel.threadlinqs.com/mcp (Purple tier)