Microsoft Says Its Systems Were Also Breached in Massive SolarWinds Hack

The massive state-sponsored espionage campaign that compromised software maker SolarWinds also targeted Microsoft, as the unfolding investigation into the hacking spree reveals the incident may have been far more wider in scope, sophistication, and impact than previously thought.

News of Microsoft’s compromise was first reported by Reuters, which also said the company’s own products were then used to strike other victims by leveraging its cloud offerings, citing people familiar with the matter.

The Windows maker, however, denied the threat actor had infiltrated its production systems to stage further attacks against its customers.

In a statement to The Hacker News via email, the company said —

“Like other SolarWinds customers, we have been actively looking for indicators of this actor and can confirm that we detected malicious SolarWinds binaries in our environment, which we isolated and removed. We have not found evidence of access to production services or customer data. Our investigations, which are ongoing, have found absolutely no indications that our systems were used to attack others.”

Characterizing the hack as “a moment of reckoning,” Microsoft president Brad Smith…