Adsuar reported a data breach to the Attorney General of New Hampshire, revealing that an unauthorized third party may have accessed sensitive personal identifiable information (PII) within its systems. The incident was first detected on February 26, 2025, when the company observed a network disruption, prompting an internal investigation. The breach exposed varying types of PII, including names and Social Security numbers (SSNs) of affected individuals. By November 21, 2025, Adsuar began notifying impacted individuals via mail, detailing the compromised data and offering complimentary credit monitoring services. The breach notice indicates that the exposed information could enable identity theft or financial fraud, though the full scope of misuse—if any—remains undisclosed. The company has not specified whether the breach resulted from a targeted cyber attack, a vulnerability exploitation, or another vector, but the compromise of SSNs elevates the risk of long-term harm to affected individuals.
Source: https://straussborrelli.com/2025/11/24/adsuar-data-breach-investigation/
Feldstein, Soto-Acabá LLC cybersecurity rating report: https://www.rankiteo.com/company/feldsteinsotoacaballc
"id": "FEL4104641112525",
"linkid": "feldsteinsotoacaballc",
"type": "Breach",
"date": "2/2025",
"severity": "85",
"impact": "4",
"explanation": "Attack with significant impact with customers data leaks"{'affected_entities': [{'name': 'Adsuar'}],
'customer_advisories': ['Notification letters with details of impacted PII '
'and credit monitoring services'],
'data_breach': {'data_exfiltration': 'Potential (unauthorized access '
'confirmed)',
'personally_identifiable_information': ['Name',
'Social Security '
'number'],
'sensitivity_of_data': 'High',
'type_of_data_compromised': ['Personally Identifiable '
'Information (PII)']},
'date_detected': '2025-02-26',
'description': 'Adsuar reported a data breach to the Attorney General of New '
'Hampshire, where sensitive personal identifiable information '
'(PII) may have been compromised. The breach was detected on '
'February 26, 2025, following a network disruption. An '
'investigation confirmed unauthorized access to PII, including '
'names and Social Security numbers. Notification letters were '
'mailed to affected individuals on November 21, 2025, offering '
'complimentary credit monitoring services.',
'impact': {'data_compromised': ['Name', 'Social Security number'],
'identity_theft_risk': 'High (PII exposed)'},
'investigation_status': 'Ongoing (as of 2025-11-21)',
'references': [{'source': 'New Hampshire Attorney General - Adsuar Breach '
'Notice'}],
'regulatory_compliance': {'regulatory_notifications': ['New Hampshire '
'Attorney General']},
'response': {'communication_strategy': ['Notification letters mailed to '
'impacted individuals on 2025-11-21'],
'incident_response_plan_activated': True,
'recovery_measures': ['Credit monitoring services for affected '
'individuals'],
'remediation_measures': ['Review of impacted data',
'Identification of affected '
'individuals']},
'threat_actor': 'Unauthorized third party',
'title': 'Adsuar Data Breach Incident',
'type': 'Data Breach'}