Microsoft says new breach discovered in probe of suspected SolarWinds hackers

SAN FRANCISCO: Microsoft said on Friday an attacker had won access to one of its customer-service agents and then used information from that to launch hacking attempts against customers.

The company said it had found the compromise during its response to hacks by a team it identifies as responsible for earlier major breaches at SolarWinds and Microsoft.

Microsoft said it had warned the affected customers. A copy of one warning seen by Reuters said that the attacker belonged to the group Microsoft calls Nobelium and that it had access during the second half of May.