Cyber memo warns of new risks to White House network

An internal memo on cybersecurity warns that "the White House is posturing itself to be electronically compromised once again." That's after at least a dozen top- or high-level officials have resigned or been pushed out of a cybersecurity mission that was established under former-President Barack Obama to protect the White House from Russian hacking and other threats. Warnings by officials from the former Office of the Chief Information Security Officer (OCISO) — which in July was folded into the Office of the Chief Information Officer (OCIO) — suggest new intelligence vulnerabilities. The memo doubled as a formal resignation letter by its author, Dimitrios Vastakis, who was the branch chief of the White House computer network defense.