The breach has sparked lawmaker concern.

Sen. Mark Warner says he is particularly disturbed about how Instagram's algorithm appears to be promoting vaccine misinfo.

"Parler was a hotbed for misinformation publishers," the research found.

The lawmakers have questions about what they're trying to do to fight it, and more.

The industry-wide program for naming and documenting vulnerabilities suffers from fluctuating funding and insufficient oversight, according to a House panel.

Replace the device? Patch the software? Lawmakers want to know how to protect legacy medical equipment from cyberthreats.