Cyberattack at Transmission Maker, Reseller, American Driveline

January 5, 2026

INCIDENT

Horsham, Pennsylvania-based American Driveline Systems, Inc., the parent company of AAMCO Transmissions, LLC, detected unusual activity within its server network this past April and found attackers stole personally identifiable information from employees.
Upon discovering this activity, American Driveline Systems immediately implemented its response protocols, took measures to contain the attack, and launched an investigation. The company then hired a cybersecurity firm that has assisted other companies in similar situations, and the investigation identified unauthorized access to files on servers in the network between April 11 and April 16.
American Driveline Systems assessed the files involved. By May 21, the company determined the files included the name and Social Security number and/or driver’s license number.

Incident Date

April 11, 2025

Estimated Cost

Unknown at this time

Type of Malware

No Malware identified

Threat Source

No threat source identified