MITRE ATT&CK Technique
Description
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. This information may also reveal supply chains and shipment paths for the victim’s hardware and software resources. Adversaries may gather this information in various ways, such as direct elicitation via [Phishing for Information](https://attack.mitre.org/techniques/T1598). Information about business relationships may also be exposed to adversaries via online or other accessible data sets (ex: [Social Media](https://attack.mitre.org/techniques/T1593/001) or [Search Victim-Owned Websites](https://attack.mitre.org/techniques/T1594)).(Citation: ThreatPost Broadvoice Leak) Gathering this information may reveal opportunities for other forms of reconnaissance (ex: [Phishing for Information](https://attack.mitre.org/techniques/T1598) or [Search Open Websites/Domains](https://attack.mitre.org/techniques/T1593)), establishing operational resources (ex: [Establish Accounts](https://attack.mitre.org/techniques/T1585) or [Compromise Accounts](https://attack.mitre.org/techniques/T1586)), and/or initial access (ex: [Supply Chain Compromise](https://attack.mitre.org/techniques/T1195), [Drive-by Compromise](https://attack.mitre.org/techniques/T1189), or [Trusted Relationship](https://attack.mitre.org/techniques/T1199)).
Supported Platforms
Created
April 29, 2026
Last Updated
April 29, 2026
STIX Data
{'created': '2020-10-02T16:27:55.713Z',
'created_by_ref': 'identity--c78cb6e5-0c4b-4611-8297-d1b8b55e40b5',
'description': "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. This information may '
'also reveal supply chains and shipment paths for the victim’s '
'hardware and software resources.\n'
'\n'
'Adversaries may gather this information in various ways, such '
'as direct elicitation via [Phishing for '
'Information](https://attack.mitre.org/techniques/T1598). '
'Information about business relationships may also be exposed '
'to adversaries via online or other accessible data sets (ex: '
'[Social Media](https://attack.mitre.org/techniques/T1593/001) '
'or [Search Victim-Owned '
'Websites](https://attack.mitre.org/techniques/T1594)).(Citation: '
'ThreatPost Broadvoice Leak) Gathering this information may '
'reveal opportunities for other forms of reconnaissance (ex: '
'[Phishing for '
'Information](https://attack.mitre.org/techniques/T1598) or '
'[Search Open '
'Websites/Domains](https://attack.mitre.org/techniques/T1593)), '
'establishing operational resources (ex: [Establish '
'Accounts](https://attack.mitre.org/techniques/T1585) or '
'[Compromise '
'Accounts](https://attack.mitre.org/techniques/T1586)), and/or '
'initial access (ex: [Supply Chain '
'Compromise](https://attack.mitre.org/techniques/T1195), '
'[Drive-by '
'Compromise](https://attack.mitre.org/techniques/T1189), or '
'[Trusted '
'Relationship](https://attack.mitre.org/techniques/T1199)).',
'external_references': [{'external_id': 'T1591.002',
'source_name': 'mitre-attack',
'url': 'https://attack.mitre.org/techniques/T1591/002'},
{'description': 'Seals, T. (2020, October 15). '
'Broadvoice Leak Exposes 350M '
'Records, Personal Voicemail '
'Transcripts. Retrieved October 20, '
'2020.',
'source_name': 'ThreatPost Broadvoice Leak',
'url': 'https://threatpost.com/broadvoice-leaks-350m-records-voicemail-transcripts/160158/'}],
'id': 'attack-pattern--6ee2dc99-91ad-4534-a7d8-a649358c331f',
'kill_chain_phases': [{'kill_chain_name': 'mitre-attack',
'phase_name': 'reconnaissance'}],
'modified': '2025-10-24T17:48:55.897Z',
'name': 'Business Relationships',
'object_marking_refs': ['marking-definition--fa42a846-8d90-4e51-bc29-71d5b4802168'],
'revoked': False,
'spec_version': '2.1',
'type': 'attack-pattern',
'x_mitre_attack_spec_version': '3.2.0',
'x_mitre_deprecated': False,
'x_mitre_detection': '',
'x_mitre_domains': ['enterprise-attack'],
'x_mitre_is_subtechnique': True,
'x_mitre_modified_by_ref': 'identity--c78cb6e5-0c4b-4611-8297-d1b8b55e40b5',
'x_mitre_platforms': ['PRE'],
'x_mitre_version': '1.0'}