Suspected Russian hacking spree reached into Microsoft: Sources

SAN FRANCISCO: Microsoft was breached in the massive hacking campaign disclosed by U.S. officials this week, according to people familiar with the matter, adding a top technology target to a growing list of vital government agencies.

The Redmond, Washington, company used the widely deployed networking management software from SolarWinds Corp, which was used in the suspected Russian attacks on U.S. agencies and others. It also had its own products leveraged to further the attacks on others, the people said.

Reuters could not immediately determine how many Microsoft users were affected by the tainted products. The Department of Homeland Security, which said earlier Thursday that the hackers used multiple methods of entry, is continuing to investigate.