Atlantic Media

Summary

An unauthorized actor accessed the organization's servers, prompting immediate engagement of external forensic experts to investigate and restore system security. While no subscriber, customer, or client financial data was compromised, certain network file-share folders containing employee and contractor tax documents—including W-2 and W-9 forms with names and Social Security Numbers—were potentially exposed. Affected individuals included current and former personnel across its subsidiaries and affiliates, though no evidence of fraudulent use or public disclosure of the data was identified.

Motives

Detailed motive labels are available to members.

TTPs

Detailed technique labels are available to members.

Description

Atlantic Media detected unauthorized access to its systems on March 1, 2021, prompting an immediate investigation with external forensic experts. The company implemented protective measures to secure its infrastructure while working to restore system functionality. Forensic analysis confirmed the breach involved unauthorized actors accessing Atlantic Media's servers, though no subscriber, customer, or client financial data was compromised. The investigation revealed that portions of the network file-share server containing sensitive employee and contractor information were potentially exposed. This server stored tax documents including W-2 and W-9 forms with names and Social Security Numbers belonging to current and former Atlantic Media personnel, employees of its subsidiaries and affiliates like The Atlantic, and certain independent contractors.

Atlantic Media notified affected individuals about the potential data exposure, emphasizing that the unauthorized access was brief and no evidence indicated fraudulent use or public dissemination of the compromised information. The company maintained that the forensic review showed no indication that the attackers exfiltrated or misused the sensitive tax documents. Response efforts focused on securing systems, restoring operations, and maintaining transparency with stakeholders through public statements. The incident exclusively impacted Atlantic Media's corporate infrastructure rather than The Atlantic's separate systems, reflecting their operational separation following Atlantic Media's transition to minority shareholder status. No business disruptions or additional data exposures beyond the identified file-share server were reported following containment measures.

Sources

Sources available to members: 1 source.