ARM, a semiconductor design company, was listed as a victim by the D1r ransomware group on July 12, 2026. The group claimed to have gained access to ARM systems and downloaded an internal tool called "Athena Download Manager." The D1r group stated that access was achieved after cross-referencing other group leaks and exploiting a vulnerability related to a leaked database from Synopsys.
No specific types of compromised data or the number of affected individuals have been publicly disclosed by ARM or verified through official channels. The extent of the data breach and any further impact remain unclear.
Additional details regarding this reported breach may emerge as investigations progress. Consumers have not been officially notified by ARM, and it is unknown if any regulatory notifications have occurred.