T1591.002sub-technique of T1591 Gather Victim Org Information

Business Relationships

PREnothing on this site yetT1591.002 on attack.mitre.org

Adversaries may gather information about the victim's business relationships that can be used during targeting. Information about an organization’s business relationships may include a variety of details, including second or third-party organizations/domains (ex: managed service providers, contractors, etc.) that have connected (and potentially elevated) network access.

MITRE ATT&CK 19.2, retrieved 2026-09-12

how MITRE says to see it

Detection of Business Relationships

  • Much of this activity may have a very high occurrence and associated false positive rate, as well as potentially taking place outside the visibility of the target organization, making detection difficult for defenders.

what reduces it

  • M1056 Pre-compromise. This technique cannot be easily mitigated with preventive controls since it is based on behaviors performed outside of the scope of enterprise defenses and controls. Efforts should focus on minimizing the amount and sensitivity of data available to external parties.

the rest of T1591

The description, detection analytics and mitigations are reproduced from MITRE ATT&CK, version 19.2, under its terms of use. The checklists, hunts, labs and everything else linked here are this site’s.