ADT Inc.: ADT ShinyHunters Data Breach Litigation Loses Some Plaintiffs

ADT Data Breach Litigation Sees Plaintiff Dropouts Amid ShinyHunters Attack Fallout

A legal battle over a 2023 data breach at ADT Inc. has seen a reduction in plaintiffs after several individuals filed motions to voluntarily dismiss their claims without prejudice. The lawsuits, consolidated in the U.S. District Court for the Southern District of Florida, stem from a ShinyHunters voice phishing attack that compromised 5.5 million customer accounts.

While ADT confirmed that payment information remained secure, the breach exposed sensitive data including birthdates, partial Social Security numbers, and Tax IDs for a subset of affected users. The dismissals suggest shifting legal strategies or settlements among plaintiffs, though the core litigation against the security firm continues.

The incident highlights the growing threat of social engineering attacks targeting large-scale service providers, with ShinyHunters a notorious hacking group previously linked to breaches at major companies. No further details on the attackers’ methods or ADT’s response have been disclosed. The case remains active in federal court.

Source: https://news.bloomberglaw.com/ip-law/adt-shinyhunters-data-breach-litigation-loses-some-plaintiffs

ADT cybersecurity rating report: https://www.rankiteo.com/company/adt

"id": "ADT1781295839",
"linkid": "adt",
"type": "Breach",
"date": "5/2025",
"severity": "85",
"impact": "4",
"explanation": "Attack with significant impact with customers data leaks"

{'affected_entities': [{'customers_affected': '5.5 million',
                        'industry': 'Security Services',
                        'name': 'ADT Inc.',
                        'type': 'Security Firm'}],
 'attack_vector': 'Voice Phishing (Social Engineering)',
 'data_breach': {'number_of_records_exposed': '5.5 million',
                 'personally_identifiable_information': 'Yes',
                 'sensitivity_of_data': 'High',
                 'type_of_data_compromised': ['Birthdates',
                                              'Partial Social Security numbers',
                                              'Tax IDs']},
 'date_detected': '2023',
 'description': 'A legal battle over a 2023 data breach at ADT Inc. has seen a '
                'reduction in plaintiffs after several individuals filed '
                'motions to voluntarily dismiss their claims without '
                'prejudice. The lawsuits stem from a ShinyHunters voice '
                'phishing attack that compromised 5.5 million customer '
                'accounts. The breach exposed sensitive data including '
                'birthdates, partial Social Security numbers, and Tax IDs for '
                'a subset of affected users.',
 'impact': {'data_compromised': '5.5 million customer accounts',
            'identity_theft_risk': 'High (partial Social Security numbers, Tax '
                                   'IDs exposed)',
            'legal_liabilities': 'Active litigation in U.S. District Court for '
                                 'the Southern District of Florida',
            'payment_information_risk': 'None (payment information remained '
                                        'secure)'},
 'investigation_status': 'Active',
 'references': [{'source': 'Cyber Incident Description'}],
 'regulatory_compliance': {'legal_actions': 'Active litigation in U.S. '
                                            'District Court for the Southern '
                                            'District of Florida'},
 'threat_actor': 'ShinyHunters',
 'title': 'ADT Data Breach Litigation',
 'type': 'Data Breach'}