Suspected Russian hackers tried to breach CrowdStrike

George Kurtz, co-founder and CEO of Crowdstrike Inc., speaks during the Montgomery Summit in Santa Monica, California.

Patrick T. Fallon | Bloomberg | Getty Images

Alleged Russian hackers accused of breaking into a number of US government agencies and cybersecurity company FireEye also tried to hack cybersecurity firm CrowdStrike, the California-based company Sunnyvale said in a blog post .

CrowdStrike said Microsoft warned on Dec. 15 that hackers had tried to read CrowdStrike’s emails using a Microsoft reseller account “a few months ago.”

CrowdStrike told its blog post that the attempt failed.

Microsoft did not immediately return any messages requesting comments on Thursday. The National Security Agency and the Cybersecurity and Infrastructure Security Agency did not send messages immediately.

Using a Microsoft reseller to try to get into a top-tier digital defense company raises new questions about how many different places hackers have had to infiltrate American networks.

Until now, Texas-based SolarWinds was the only publicly confirmed vector for breaches, although officials had been warning for days that hackers had also used other unspecified avenues to subvert their targets.

Separately, SolarWinds said Thursday it had released an update to address vulnerabilities in its flagship network management software, Orion, following the discovery of a second set of hackers targeting the company’s products.

The announcement came after a blog post by Microsoft on Friday said SolarWinds had software run by a second group of hackers and unrelated hackers, in addition to those linked to Russia.

The identity of the second group of hackers, or the degree to which they may have successfully entered anywhere, is still unclear.

Russia has denied any role in the hacking.

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