President Donald Trump Donald John TrumpBarr criticizes DOJ in speech declaring all agency power 'is invested in the attorney general' Military leaders asked about using heat ray on protesters outside White House: report Powell warns failure to reach COVID-19 deal could 'scar and damage' economy MORE on Friday called for an emergency meeting with his homeland security advisor following a massive ransomware attack that affected as many as 74 countries, according to multiple reports.

Reuters first reported that Trump asked Homeland Security Advisor Tom Bossert to convene the meetings. CBS News’s White House Correspondent said the White House held meetings on Friday and Saturday to evaluate the cyber threat.

Official confirms emergency WH meetings Friday and Saturday to assess global cyber attack. (1/2) — Mark Knoller (@markknoller) May 14, 2017

Cyber attack meetings convened by WH Homeland Security Advisor Tom Bossert at direction of Pres Trump, official confirms. — Mark Knoller (@markknoller) May 14, 2017

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The National Security Agency (NSA) and FBI were working to determine who conducted the attack, Reuters said.

The ransomware attack targeted computers around the world on Friday and employed stolen NSA hacking tools that were leaked online.