Change Healthcare Faces Another Ransomware Threat—and It Looks Credible

Change Healthcare ransomware hackers already received a $22 million payment. Now a second group is demanding money, and it has sent WIRED samples of what they claim is the company's stolen data.

The Mystery of ‘Jia Tan,’ the XZ Backdoor Mastermind

The thwarted XZ Utils supply chain attack was years in the making. Now, clues suggest nation-state hackers were behind the persona that inserted the malicious code.