F.B.I. Investigates Cyberattack That Targeted N.Y.C. Law Department

City lawyers’ computer network was disabled after the attack, which the police and federal officials believe was the work of hackers.

Are We Waiting for Everyone to Get Hacked?

It’s been almost a decade since Leon Panetta, then the secretary of defense, warned of an impending “Cyber Pearl Harbor.” He didn’t want to be right.

F.B.I. Director Compares Danger of Ransomware to 9/11 Terror Threat

The Biden administration is taking steps to counter the growing threat of cyberattacks on U.S. businesses, and encouraging companies to do more to protect themselves.

White House Warns Companies to Act Now on Ransomware Defenses

An open letter urged them to take many of the defensive steps that the federal government requires of its agencies and contractors.

The M.T.A. Is Breached by Hackers as Cyberattacks Surge

Hackers with suspected ties to China penetrated the New York transit agency’s computer systems in April, an M.T.A. document shows. Transit officials say the intrusion did not pose a risk to riders.

Ransomware Disrupts Meat Plants in Latest Attack on Critical U.S. Business

All of JBS’s beef plants in the U.S. were shuttered on Tuesday, and many of its pork and poultry plants were affected, according to a union and Facebook posts meant for employees.

Secret Chats Show How Cybergang Became a Ransomware Powerhouse

As the ransomware industry exploded, a Russian-speaking outfit called DarkSide offered would-be computer crooks not just the tools, but also customer support. We got an inside look.

Biden Administration to Require Pipeline Companies to Report Cyberattacks

The move, which will require companies to report to the government any significant attacks, is a response to the Colonial Pipeline ransomware attacks.

Biden and Putin to Meet in Mid-June, in a Summit Fraught With Tensions

The meeting comes at the worst point in Russian-American relations since the fall of the Soviet Union about 30 years ago.

Irish Hospitals Are Latest to Be Hit by Ransomware Attacks

Hospitals in Ireland, New Zealand and Scripps Health in San Diego are reeling from digital extortion attacks.