China coup tweets originated with Chinese dissident networks, but spread quickly and ultimately lead to news coverage in India.

Sen. Mark Warner said "new threats and new technology mean that we have to make substantial adjustments to our counterintelligence posture."

Tech executives say they are working hard to fight disinformation, but lawmakers and critics say they simply aren't doing enough.

A former Facebook executive turned critic is expected to testify about how the company prioritizes growth over safety.

Dunkin Donuts, Citibank and Adidas have had their Google-placed ads displayed on Russian state-owned sites fueling disinformation.

CISA Director Jen Easterly said election security has grown more complex as disinformation and threats against election workers have surged.