https://www.reuters.com/article/us-cyber-solarwinds-microsoft/microsoft-says-it-notified-60-customers-of-solarwinds-breach-u-s-senate-panel-hearing-idUSKBN2AN28F

Microsoft Corp has notified 60 customers that their data was likely compromised in the suspected Russian hacking campaign centered on Texas-based software firm SolarWinds Corp, the company’s president told U.S. lawmakers on Tuesday.