Recently, it’s been confirmed by Microsoft that the current outage problems experienced by the following services of Microsoft were due to intentional Layer 7 DDoS attacks:- Azure Outlook OneDrive The credit for the attacks goes to a threat actor called Storm-1359 (aka Anonymous Sudan), as per Microsoft’s findings. Microsoft observed a rise in web traffic targeting specific services starting in early June 2023, resulting in temporary availability issues.

Source: GBHackers