https://www.reuters.com/article/us-usa-cyber-vpn/u-s-government-probes-vpn-hack-within-federal-agencies-races-to-find-clues-idUSKBN2CG2EB >For at least the third time since the beginning of this year, the U.S. government is investigating a hack against federal agencies that began during the Trump administration but was only recently discovered, according to senior U.S. officials and private sector cyber defenders.