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Marcus Hutchins, the British researcher who stopped the May WannaCry hack, has been arrested by the FBI in Las Vegas for allegedly playing a role in creating the "Kronos" malware that targeted bank accounts, per The Guardian. The WannaCry attack crippled healthcare operations in the UK and hit dozens of countries.

About Kronos: It spread between 2014 and 2015 through emails with malicious attachments, such as compromised Word documents, with the aim of getting banking credentials. New infections occurred through 2016.

Hutchins' charges: The Department of Justice released the allegations about Hutchins' role in the Kronos hack, claiming he helped create, spread, and maintain the hack. Hutchins faces six counts of hacking-related charges. There is another, unnamed co-defendant, who allegedly tried selling the malware on AlphaBay, a darknet marketplace, which was shut down July 20 when the FBI and European authorities seized its servers.

Note: Ryan Kalember of Proofpoint said "This could very easily be the FBI mistaking legitimate research activity with being in control of Kronos infrastructure. Lots of researchers like to log in to crimeware tools and interfaces and play around."

Go deeper

Updated 1 hour ago - Politics & Policy

In photos: The Biden and Harris inauguration

President Biden and first lady Jill Biden watch a fireworks show on the National Mall from the Truman Balcony at the White House on Wednesday night. Photo: Chip Somodevilla/Getty Images

President Biden signed his first executive orders into law from the Oval Office on Wednesday evening after walking in a brief inaugural parade to the White House with First Lady Jill Biden and members of their family. He was inaugurated with Vice President Kamala Harris at the U.S. Capitol on Wednesday morning.

Why it matters: Many of Biden's day one actions immediately reverse key Trump administration policies, including rejoining the Paris Agreement and the World Health Organization, launching a racial equity initiative and reversing the Muslim travel ban.

Republicans pledge to set aside differences and work with Biden

President Biden speaks to Sen. Mitch McConnell after being sworn in at the West Front of the U.S. Capitol on Wednesday. Photo: Erin Schaff-Pool/Getty Images

Several Republicans praised President Biden's calls for unity during his inaugural address on Wednesday and pledged to work together for the benefit of the American people.

Why it matters: The Democrats only have a slim majority in the Senate and Biden will likely need to work with the GOP to pass his legislative agenda.

The Biden protection plan

Joe Biden announces his first run for the presidency in June 1987. Photo: Howard L. Sachs/CNP/Getty Images

The Joe Biden who became the 46th president on Wednesday isn't the same blabbermouth who failed in 1988 and 2008.

Why it matters: Biden now heeds guidance about staying on task with speeches and no longer worries a gaffe or two will cost him an election. His staff also limits the places where he speaks freely and off the cuff. This Biden protective bubble will only tighten in the months ahead, aides tell Axios.

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