The White House envisions McAleenan working more with Congress, one official said, though the official declined to be specific about policy details. McAleenan is a rare Trump appointee with cordial relations with Democrats in Congress.
Tom Bossert was a point person in the White House on protecting the nation from terror and cyber threats. He also helped spearhead the administration's response to last year's hurricanes in Texas, Florida and Puerto Rico.
According to a confidential weekly report, the US Department of Homeland Security detected five 'critical' cyber security weaknesses on the Securities and Exchange Commission's computers as of January 2017.