Deezer was exposed to a security breach in September 2019 that resulted in a user data vulnerability. Deezer stated that the breach was carried out by compromising the security of 3rd party partners and that users’ sensitive data, such as payment information or passwords, were not affected by the breach. However, during the intelligence studies, it was detected that threat actors in underground forums leaked the user data obtained in the September 2019 breach.
The leaked data includes various personal data of Deezer users, such as name, surname, gender, date of birth, e-mail address, location information, IP address, and username. Threat actors who shared the post stated that the breach occurred because a third party made a publicly accessible backup of the data.
Deezer users are advised to be aware of the leaked data, not to trust e-mails, attachments, and links from unknown parties, and to change the password information used on the platform by applying strong password policies. In addition, it is recommended that institutions/organizations and companies store and back up their data in a secure and inaccessible way, keep their systems up-to-date, and benefit from comprehensive security solutions in order not to be the target of data breaches.