email SolarWinds Isn't the Only Way Hackers Entered Networks, CISA Says The agency warned that ejecting attackers from networks will be tough, especially because they can likely read the email of IT and cybersecurity employees. The fallout from the SolarWinds breaches will be far more difficult and time-consuming to remediate than originally assumed, as the attackers likely found more ways to enter federal networks than just the SolarWinds Orion product and have been targeting IT and response personnel, according to the government’s lead cybersecurity agency. The Cybersecurity and Infrastructure Security Agency, or CISA, released an alert Thursday through the U.S. Computer Emergency Readiness Team, or US-CERT, detailing what the agency currently knows about the attack. The alert calls out at least one other attack vector beyond SolarWinds products and identifies IT and security personnel as prime targets of the hacking campaign.