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An outage of Microsoft’s OneDrive cloud storage service is currently under investigation after a threat actor claimed to have targeted the website with a distributed denial-of-service (DDoS) attack.
While Microsoft’s Service Health page now says that the OneDrive service is now operational, it previously reported on Thursday (8 June) that the issue was under investigation.
“We’re investigating a potential issue and checking for impact to your organisation. We’ll provide an update within 30 minutes,” said Microsoft.
“We’ve reviewing OneDrive telemetry that captures this impact scenario to determine the source of the service access failures and begin identifying a mitigation plan.”
A hacktivist group under the moniker “Anonymous Sudan” claimed to be behind the attack. The group, which is a far-right activist group from Sudan, is thought to have connections to Russia and has claimed to have taken out other Microsoft services prior.
“Microsoft, you think we forgot you? We are motivated to teach you liars a very good lesson in honesty that none of your parents ever taught you,” the group said on Telegram.
“Onedrive has been downed. Let’s see your new excuse now.”
The previous incident saw services including OneDrive for Business, SharePoint Online, and Outlook all taken down, all reportedly as a result of a DDoS attack.
Microsoft has told media that it is aware of the hacking threat and is working to bolster its security to prevent its customers from being affected.
“We are aware of these claims and are investigating,” the tech giant said.
“We are taking the necessary steps to protect customers and ensure the stability of our services.”
According to Radware, Killnet has said that Anonymous Sudan is an official member of its hacktivists cluster, which targets nations that oppose Russia.