Sax LLP: Sax LLP Data Breach Claims Investigated by Lynch Carpenter

Sax LLP Data Breach Exposes Personal Information of Over 200,000 Individuals

On December 23, 2025, New Jersey-based accounting firm Sax LLP disclosed a cybersecurity incident that compromised the personal data of more than 200,000 individuals. The breach occurred in August 2024, when an unauthorized actor accessed Sax’s network and potentially exfiltrated sensitive records.

The exposed data includes personally identifiable information (PII) such as names combined with dates of birth, Social Security numbers, passport numbers, and driver’s license numbers. Sax has not provided further details on the attack vector or the total number of affected clients.

Lynch Carpenter LLP, a national class action law firm, is investigating potential legal claims against Sax in response to the breach. The firm, which specializes in data privacy litigation, has represented millions of clients in similar cases over the past decade.

No additional information regarding Sax’s response, mitigation efforts, or regulatory notifications has been released at this time. The incident remains under review by legal and cybersecurity authorities.

Source: https://www.globenewswire.com/news-release/2025/12/23/3210041/0/en/Sax-LLP-Data-Breach-Claims-Investigated-by-Lynch-Carpenter.html

SAX cybersecurity rating report: https://www.rankiteo.com/company/sax-llp

"id": "SAX1766513928",
"linkid": "sax-llp",
"type": "Breach",
"date": "8/2024",
"severity": "85",
"impact": "4",
"explanation": "Attack with significant impact with customers data leaks"

{'affected_entities': [{'customers_affected': '200000',
                        'industry': 'Professional Services',
                        'location': 'Parsippany, New Jersey, USA',
                        'name': 'Sax LLP',
                        'type': 'Accounting Firm'}],
 'customer_advisories': 'Individuals impacted may be entitled to compensation; '
                        'advised to contact Lynch Carpenter LLP.',
 'data_breach': {'number_of_records_exposed': '200000',
                 'personally_identifiable_information': 'Yes',
                 'sensitivity_of_data': 'High',
                 'type_of_data_compromised': ['Names',
                                              'Date of birth',
                                              'Social Security number',
                                              'Passport number',
                                              'Driver’s license number']},
 'date_detected': '2024-08',
 'date_publicly_disclosed': '2025-12-23',
 'description': 'An unauthorized person gained access to Sax LLP’s network in '
                'August 2024 and may have acquired records containing '
                'personally identifiable information (PII) of over two hundred '
                'thousand individuals.',
 'impact': {'data_compromised': 'Personally identifiable information (PII)',
            'identity_theft_risk': 'High',
            'systems_affected': 'Sax LLP’s network'},
 'investigation_status': 'Ongoing (Class action investigation)',
 'references': [{'date_accessed': '2025-12-23',
                 'source': 'Globe Newswire',
                 'url': 'https://saxadvisorygroup.com/'}],
 'regulatory_compliance': {'legal_actions': 'Class action investigation by '
                                            'Lynch Carpenter LLP'},
 'response': {'communication_strategy': 'Public disclosure via press release'},
 'title': 'Sax LLP Cybersecurity Incident',
 'type': 'Data Breach'}