That would explain this 440GB leak, then Fortinet has admitted that bad actors accessed cloud-hosted data about its customers, but insisted it was a "limited number" of files. The question is: how limited is "limited"?

The files included “limited data related to a small number of Fortinet customers,” the announcement added, stating that this affects less than 0.3% of its user base. The company then said that its operations have not been impacted by the attack,

The world’s third-largest cybersecurity company Fortinet has disclosed a data breach after a threat actor Fortibitch leaked 440 GB of the company’s allegedly stolen SharePoint data.

Cybersecurity giant Fortinet has confirmed it suffered a data breach after a threat actor claimed to steal 440GB of files from the company's Microsoft Sharepoint server.

Fortinet has confirmed a data breach that has allegedly compromised 440 GB of Azure SharePoint files containing Fortinet customer data.

A threat actor accessed ‘a limited number of files stored on Fortinet’s instance of a third-party cloud-based shared file drive,’ the security vendor says.

Fortinet (NASDAQ:FTNT) confirmed a data breach after a hacker claimed to have gained access to files from the cybersecurity company's Microsoft (MSFT) Sharepoint server, according to a report by BleepingComputer on Thursday afternoon.