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Microsoft said on Friday that the outages that crippled several of the company’s services earlier this month were the result of cyberattacks, but it saw no evidence of any user data being accessed or compromised.
“Beginning in early June 2023, Microsoft identified surges in traffic against some services that temporarily impacted availability,” according to a blog post by the company.
After identifying the threat, the business claimed it launched an investigation and began analysing the DDoS activity of the threat actor known as Storm-1359. DDoS attacks work by sending massive amounts of internet traffic to specific servers in an attempt to bring them down.
While DDoS attacks are primarily a nuisance that renders websites inaccessible without really infiltrating them. According to security experts, if they successfully disrupt the services of a software service giant like Microsoft, on which so much global business depends, they can disturb the work of millions. According to Microsoft, there is no evidence that any customer data was accessed or compromised.
Earlier that day, on June 5, the company’s 365 software suite, including Teams and Outlook, was down for more than two hours for thousands of users, with a brief recurrence the next morning.
Throughout the week, attacks persisted, with company revealing on June 9 that its Azure cloud computing infrastructure had been compromised. Later that day, on June 8, the computer security news site BleepingComputer.com stated that cloud-based OneDrive file-hosting was temporarily unavailable worldwide.