In a release on Friday, Microsoft said the June 5 outage, which affected multiple services, was caused by hackers carrying out a distributed denial of service (DDoS) attack.

Attacks carried out by Storm-1359 did not compromise user data, tech giant said in article release, but instead made a name for itself by sabotaging various Microsoft services using various attacks. Microsoft reported 18,000 service outages across multiple services over a series of roughly two and a half hours on June 5th. post on Twitter. (Related: The Hacker Group Everyone’s Watching Right Now)

We are investigating an issue with accessing Outlook on the web. For more information, see EX571516 in the Admin Center.

— Microsoft 365 Status (@MSFT365Status) June 5, 2023

Fox Business Network affected Microsoft Outlook, OneDrive, Teams among services disrupted by DDoS attack report, while naming the attacker Anonymous Sudan. According to Fox Business Network, the company did not provide further details about the attack.

cloudflare Define A DDoS attack is defined as “a malicious attempt to disrupt the normal traffic of a target’s server, service, or network by overwhelming the target or its surrounding infrastructure with a flood of Internet traffic.” .

According to Cloudflare, a DDoS attack uses Internet traffic requests from computers infected with malicious programs or “malware” as a means of interfering with the processing of normal requests, flooding a target’s system, causing websites and It says it can’t access the email server. Prior to and at the time of the February 2022 invasion of Russia, there were multiple DDoS cyberattacks targeting Ukrainian systems.

“This recent DDoS activity targeted layer 7 rather than layers 3 or 4. Microsoft has implemented an Azure Web Application Firewall (WAF) We have enhanced our Layer 7 protections, including adjustments,” Microsoft said in its release on Friday.

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