Recent protests Hong Kong have been accompanied by surveillance and misinformation campaigns intended to clamp down on the activists.

Gen. Paul Nakasone says China's information warfare efforts are only meant to help the country exert authoritarian control.

The case again highlights the challenges of mitigating state-sponsored information operations.

Twitter also announced it would no longer accept advertising from state-controlled news media.

It's hardly the first time Twitter has been used to amplify questionable narratives.