Boston Capital Holdings LP Data Breach Exposes Sensitive Personal Information
Boston-based real estate investment firm Boston Capital Holdings LP disclosed a data breach after detecting unauthorized access to its systems in February 2026. The company, which specializes in affordable and market-rate housing investments, operates from its headquarters at 11 Beacon St., Boston, MA.
On February 12, 2026, Boston Capital initiated an investigation following reports of potential unauthorized access. Cybersecurity experts determined that a sophisticated threat actor exploited legitimate third-party cloud systems to bypass security measures, gaining access to sensitive files between January 16 and January 22, 2026. The breach was confirmed on May 5, 2026, after a review of compromised data.
Exposed information includes names, Social Security numbers, driver’s license and passport numbers, other government IDs, and financial account details though access codes were not compromised. As of the disclosure, 132 Maine residents were confirmed affected, with written notices sent to impacted individuals beginning May 18, 2026.
The law firm Shamis & Gentile P.A. is investigating potential legal claims on behalf of those affected, citing possible eligibility for compensation. No evidence of misuse of the stolen data has been reported at this time.
Source: https://www.claimdepot.com/investigations/boston-capital-data-breach-2026
Boston Capital cybersecurity rating report: https://www.rankiteo.com/company/boston-capital
"id": "BOS1779209106",
"linkid": "boston-capital",
"type": "Breach",
"date": "1/2026",
"severity": "85",
"impact": "4",
"explanation": "Attack with significant impact with customers data leaks"{'affected_entities': [{'customers_affected': '132 Maine residents',
'industry': 'Real Estate',
'location': '11 Beacon St., Boston, MA, USA',
'name': 'Boston Capital Holdings LP',
'type': 'Real estate investment firm'}],
'attack_vector': 'Exploitation of third-party cloud systems',
'customer_advisories': 'Written notices sent to impacted individuals '
'beginning May 18, 2026',
'data_breach': {'number_of_records_exposed': '132 (confirmed for Maine '
'residents)',
'personally_identifiable_information': 'Names, Social '
'Security numbers, '
'driver’s license and '
'passport numbers, '
'other government IDs',
'sensitivity_of_data': 'High',
'type_of_data_compromised': 'Personal Identifiable '
'Information, Financial '
'Information, Government IDs'},
'date_detected': '2026-02-12',
'date_publicly_disclosed': '2026-05-18',
'description': 'Boston-based real estate investment firm Boston Capital '
'Holdings LP disclosed a data breach after detecting '
'unauthorized access to its systems in February 2026. A '
'sophisticated threat actor exploited legitimate third-party '
'cloud systems to bypass security measures, gaining access to '
'sensitive files between January 16 and January 22, 2026. '
'Exposed information includes names, Social Security numbers, '
'driver’s license and passport numbers, other government IDs, '
'and financial account details. As of the disclosure, 132 '
'Maine residents were confirmed affected.',
'impact': {'data_compromised': 'Names, Social Security numbers, driver’s '
'license and passport numbers, other '
'government IDs, financial account details',
'identity_theft_risk': 'High',
'legal_liabilities': 'Potential legal claims being investigated by '
'Shamis & Gentile P.A.',
'payment_information_risk': 'Moderate'},
'initial_access_broker': {'entry_point': 'Third-party cloud systems'},
'investigation_status': 'Ongoing',
'post_incident_analysis': {'root_causes': 'Exploitation of legitimate '
'third-party cloud systems'},
'references': [{'source': 'Boston Capital Holdings LP Data Breach '
'Disclosure'}],
'regulatory_compliance': {'legal_actions': 'Potential legal claims being '
'investigated by Shamis & Gentile '
'P.A.'},
'response': {'communication_strategy': 'Written notices sent to impacted '
'individuals',
'third_party_assistance': 'Cybersecurity experts'},
'threat_actor': 'Sophisticated threat actor',
'title': 'Boston Capital Holdings LP Data Breach Exposes Sensitive Personal '
'Information',
'type': 'Data Breach',
'vulnerability_exploited': 'Legitimate third-party cloud systems bypass'}