Microsoft Says Service Outages in Early June Were Caused by Cyberattacks; No Evidence of Data Breach 6h2555 Technology News

Microsoft said it opened an investigation and began tracking the DDoS activity by the threat actor after it identified the threat. 6o5b1f

By Reuters | Updated: 19 June 2023 10:29 IST

Microsoft Says Service Outages in Early June Were Caused by Cyberattacks; No Evidence of Data Breach

Photo Credit: Reuters 3v6d2p

Microsoft saw no evidence of any customer data being accessed or compromised

Highlights

Microsoft's 365 software suite was down for over two hours on June 5
That was the fourth such outage for the company in a year
Microsoft refers the threat actor as Storm-1359

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cyberattacks, but said it saw no evidence of any customer data being accessed or compromised.

"Beginning in early June 2023, Microsoft identified surges in traffic against some services that temporarily impacted availability'" the company said in a blog post.

Microsoft said it opened an investigation and began tracking the DDoS activity by the threat actor it refers to as Storm-1359 after it identified the threat.

Microsoft 365 Services Restored After Outage Affects Thousands of s

Microsoft did not immediately respond to a request by Reuters as to whether the company had identified the party responsible for the attack.

DDoS attacks work by directing high volumes of internet traffic towards targeted servers in a relatively unsophisticated bid to knock them offline.

Microsoft's 365 software suite, including Outlook, were down for more than two hours for over thousands of s on June 5 and a brief recurrence the following morning. That was the fourth such outage for Microsoft in a year.

Microsoft Is Scrambling to Fix a Major Outage With Teams, Outlook, More

Earlier this month, the company said it had restored its online services after an outage affected thousands of s of its 365 software suite, including Teams and Outlook, for more than two hours.

Access to its productivity software such as Excel was down for nearly 18,000 s at its peak before easing to 906 at around 12:57 p.m. ET, according to Downdetector.com, which tracks internet outages.

At the time, the tech company had said it had rolled back a system update to resolve the outage, without providing any detail.

In January, Microsoft was hit with a networking outage that took down its cloud platform Azure along with services such as Teams and Outlook, potentially affecting millions of s globally.

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