The Quad and AUKUS both this month signaled a commitment to digital defenses.

The U.S. still isn't well-equipped to answer the challenge ransomware poses, Chris Inglis said.

Russian government-backed groups have turned their attention elsewhere, while the local ransomware scene thrives.

Companies also will offer cyber tools and training after a private sector cybersecurity summit at the White House.

The administration expects to make "concrete announcements" about tackling root causes of cyberattacks, a senior official said.

Seven agencies use systems that no longer receive software updates from their vendor.