Pioneer Construction: Pioneer ConstructionData Breach?

Pioneer Construction Hit by Akira Ransomware Attack, 168GB of Data Stolen

Pioneer Construction, a Michigan-based contracting firm with operations across the U.S., has reportedly suffered a data breach linked to the Akira ransomware group. The attack, which occurred on the same day the breach was disclosed, resulted in the theft of approximately 168 gigabytes of sensitive corporate data.

According to claims by Akira, the stolen data includes:

• Employee personal documents
• Financial information
• Internal client records
• Confidential correspondence
• Other private corporate data

Legal teams are investigating the incident to determine whether a class action lawsuit can be filed on behalf of affected individuals, including current and former employees, subcontractors, and clients. Attorneys are seeking those who believe their information may have been exposed to assist in the probe.

At the time of reporting, no further details on the breach’s scope or Pioneer Construction’s response were available. The incident highlights ongoing risks posed by ransomware groups targeting corporate data.

Source: https://www.classaction.org/data-breach-lawsuits/pioneer-construction-july-2026

Pioneer Construction Inc cybersecurity rating report: https://www.rankiteo.com/company/pioneer-construction-inc

"id": "PIO1784759510",
"linkid": "pioneer-construction-inc",
"type": "Ransomware",
"date": "1/2026",
"severity": "100",
"impact": "5",
"explanation": "Attack threatening the organization's existence"

{'affected_entities': [{'customers_affected': 'Current and former employees, '
                                              'subcontractors, and clients',
                        'industry': 'Construction',
                        'location': 'Michigan, U.S.',
                        'name': 'Pioneer Construction',
                        'type': 'Contracting firm'}],
 'data_breach': {'data_exfiltration': 'Yes',
                 'personally_identifiable_information': 'Yes',
                 'sensitivity_of_data': 'High',
                 'type_of_data_compromised': ['Employee personal documents',
                                              'Financial information',
                                              'Internal client records',
                                              'Confidential correspondence',
                                              'Other private corporate data']},
 'description': 'Pioneer Construction, a Michigan-based contracting firm with '
                'operations across the U.S., has reportedly suffered a data '
                'breach linked to the Akira ransomware group. The attack '
                'resulted in the theft of approximately 168 gigabytes of '
                'sensitive corporate data, including employee personal '
                'documents, financial information, internal client records, '
                'confidential correspondence, and other private corporate '
                'data.',
 'impact': {'data_compromised': '168GB of sensitive corporate data',
            'legal_liabilities': 'Potential class action lawsuit'},
 'investigation_status': 'Ongoing (legal teams investigating)',
 'ransomware': {'data_exfiltration': 'Yes', 'ransomware_strain': 'Akira'},
 'references': [{'source': 'Cyber Incident Report'}],
 'regulatory_compliance': {'legal_actions': 'Potential class action lawsuit'},
 'threat_actor': 'Akira ransomware group',
 'title': 'Pioneer Construction Hit by Akira Ransomware Attack',
 'type': 'Ransomware'}