A cybercriminal group operating under the name Maze has released some of the data stolen from camera manufacturer Canon earlier this month.
The Japanese multinational corporation confirmed it had suffered a ransomware on August 5, but managed to restore most of its services relatively quickly, leading to speculation the firm had paid the ransom.
However, given a portion of the stolen data has ended up online, it appears the firm has refused to negotiate with the attackers.
Maze published a single .zip file weighing 2.2GB, entitled “STRATEGICPLANNINGpart62“, which the cybercriminal group said this represents approximately five percent of all the stolen data.
According to Bleeping Computer, which analyzed a small sample of these documents, the files seem to originate from the company’s US business and relate to marketing activities.
To date, no financial or personally identifiable information belonging to Canon has been published online.
Lately, ransomware operators have taken to lifting corporate data as well as encrypting systems.
This practice became popular after an increasing number of companies started regularly backing up their data, setting up advanced antivirus systems and outright refusing to pay the ransom.