There was some coverage of TeamCity in relevant circles, e.g. https://www.nytimes.com/2021/01/06/us/politics/russia-cyber-hack.html https://www.nytimes.com/2021

There was some coverage of TeamCity in relevant circles, e.g. https://www.nytimes.com/2021/01/06/us/politics/russia-cyber-hack.html https://www.nytimes.com/2021/01/06/us/politics/russia-cyber-... That article attributes the claim to "officials and executives briefed on the inquiry".