The Cannon Company dba CannonDesign is sending notices of a knowledge breach to greater than 13,000 of its purchasers, informing that hackers breached and stole knowledge from its community in an assault in early 2023.
CannonDesign is a multi-awarded architectural, engineering, and consulting agency based mostly in the US, acknowledged for its work on high-profile tasks resembling tutorial buildings, hospitals, and sports activities arenas.
The corporate, ranked probably the most revolutionary structure corporations on the earth, has been concerned in main tasks just like the College of Minnesota Well being Clinics and Surgical procedure Heart, and the multi-purpose stadium on the College of Maryland.
The notification letter that CannonDesign began sending to impacted people informs of a safety incident that occurred between January 19-25, 2023, which concerned unauthorized community entry and knowledge exfiltration.
Though the agency found the intrusion on January 25, 2023, the investigation into the incident was solely accomplished on Might 3, 2024, and it took them one other three months.
The investigation revealed that the menace actor behind the assault may need accessed names, addresses, social safety numbers (SSNs), and driver’s license numbers.
Notification recipients are supplied 24-month credit score monitoring by means of Experian to mitigate the danger that stems from their private knowledge publicity, although it needs to be famous that this comes with a major delay.
Avos Locker assault
Regardless that Cannon Design has not named the cybercriminals answerable for the assault, a spokesperson confirmed to BleepingComputer that the disclosure pertains to the Avos Locker ransomware assault that occured early in 2023.
Additionally, the agency states that it’s not conscious of any tried misuse of the stolen info, though the knowledge has been revealed on-line a number of occasions and on numerous websites.
On February 2, 2023, the Avos Locker ransomware gang introduced a breach on CannonDesign, claiming to carry 5.7 TB of stolen knowledge, together with company and consumer information.

Supply: KELA
After the menace actor’s presumably didn’t extort the architectural agency, the baton was handed to Dunghill Leaks, which revealed 2TB of knowledge stolen from CannonDesign on September 26, 2023.
The info allegedly included database dumps, mission schematics, hiring paperwork, consumer particulars, advertising materials, IT and infrastructure particulars, and high quality assurance studies.

Supply: KELA
Dunghill Leaks is a knowledge leak web site launched by the Darkish Angels ransomware group in April 2023 and used to strain victims into paying the ransomware demand.
In February 2024, the identical dataset was revealed on hacker boards in the dead of night internet, together with ClubHydra, whereas one a part of the dataset was shared through torrent on Breached Boards in July 2024.

Supply: BleepingComputer
BleepingComputer has contacted CannonDesign to verify that the disclosed knowledge breach is linked to the identical dataset that has been circulated on-line for over a yr now, however a remark wasn’t instantly obtainable.