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Illustration: Eniola Odetunde/Axios

A tsunami of ransomware attacks has hit U.S. hospitals in Vermont, New York, Oregon and likely other states, with U.S. officials warning that there is “credible information of an increased and imminent cybercrime threat to U.S. hospitals and healthcare providers” across the country, according to a recent CISA, FBI and HHS bulletin.

Why it matters: The decision by cyber criminals to launch a large-scale campaign attacking hospitals represents a shocking escalation by these groups, and it shows how unbound by moral considerations they are when selecting their targets.

Details: “As many as 20 medical facilities” have already been affected by these attacks, according to NBC News.

  • The ransomware attacks are believed to have been perpetrated by the Russian-speaking group of cyber criminals that operates the “TrickBot” botnet, the world’s largest. A botnet is a group of hijacked computers that have been repurposed for malicious ends.

Background: Last month, the U.S. military’s Cyber Command temporarily degraded the TrickBot network. In a related action, Microsoft also attempted to disrupt this cyber criminal group’s activities.

The big picture: These ransomware attacks, which encrypt victims’ data unless they pay a fee to get it back, are occurring as medical facilities across the country are being overwhelmed with new hospitalizations because of the COVID-19 pandemic.

  • Some affected hospitals have lost access to their digital records, slowing down basic administrative tasks and creating backlogs. In an Oregon hospital, surgeries and some cancer treatments have been delayed because of the attacks.

The bottom line: Ransomware-wielding cyber criminals represent "the most significant cyber threat that we’ve experienced in the US to date," Charles Carmakal, chief technical officer of the cybersecurity firm Mandiant, told Wired.

Go deeper

In cyber espionage, U.S. is both hunted and hunter

Illustration: Eniola Odetunde/Axios

American outrage over foreign cyber espionage, like Russia's SolarWinds hack, obscures the uncomfortable reality that the U.S. secretly does just the same thing to other countries.

Why it matters: Secrecy is often necessary in cyber spying to protect sources and methods, preserve strategic edges that may stem from purloined information, and prevent diplomatic incidents.

Acting Capitol Police chief: Phone logs show Jan. 6 National Guard approval was delayed

Pittman at a congressional tribute for fallen officer Brian Sicknick. Photo: Erin Schaff-Pool/Getty Images

Acting U.S. Capitol Police chief Yogananda Pittman testified on Thursday that cellphone records show former USCP chief Steven Sund requested National Guard support from the House sergeant-at-arms as early as 12:58pm on Jan. 6, but he did not receive approval until over an hour later.

Why it matters: Sund and former House sergeant-at-arms Paul Irving clashed at a Senate hearing on Tuesday over a dispute in the timeline for when Capitol Police requested the National Guard during the Capitol insurrection.

Manhattan prosecutors reportedly obtain millions of pages of Trump's tax records

Photo: Al Drago/Bloomberg via Getty Images

The Manhattan district attorney is now in possession of millions of pages of former President Trump's tax and financial records, CNN first reported, following a Supreme Court ruling that allowed prosecutors to enforce a subpoena after a lengthy legal battle.

Why it matters: Trump fought for years to keep his tax returns out of the public eye and away from prosecutors in New York, who are examining his business in a criminal investigation that was first sparked by hush-money payments made by Trump's former fixer Michael Cohen during the 2016 election.