U.S. officials warned of "credible information of an increased and imminent cybercrime threat to U.S. hospitals and healthcare providers" on Thursday.
A cyberattack that locked down computers sparked mass disruption at a German university hospital this month. Now, investigators claim to have found a link to Russia.
The individual had been connected to a hacking group known as The Dark Overlord, which had taken credit for the theft of television shows and medical files.
A Russian national allegedly offered a Tesla employee $1 million to introduce malware onto the company's network.
Ransomware attacks have been gaining currency among hackers in recent years as a preferred method of extortion.
Last month, at least three Florida towns and cities fell victim to similar incidents and decided to pay more than $1 million to hackers to restore their systems. It remains unknown if the attacks are linked.
City officials confirmed the FBI and DHS have been notified of the cyberattack.
Starting by targeting software in Ukraine, the ransomware NotPetya spread internationally, and the British government thinks the Russian military was behind it.
Bad Rabbit is spreading "in a worm-like fashion" between computers.
Petya was only masquerading as ransomware. Its real function was to destroy victims' data.
Government sites, banks, the postal service, Kiev's airport and the Chernobyl nuclear plant were all hit by the cyberattack.
The Ransomware attack hit over 300,000 computers in 150 countries, but earned hackers just $140,000 in Bitcoin.
Newly found flaw in widely used networking software is yet to be exploited by hackers.
Cybersecurity firm Symantec said a North Korean hacking group was behind the WannaCry cyberattack.
Proposed bill would require the NSA to inform other government agencies about security holes it finds in software.
At least 30,000 computers across China were affected.
Security researchers say infected machines are "mining" for a digital currency called Monero.
The self-taught computer expert triggered a "kill switch" that stopped the hack in its tracks.