Tom Cotton, R-Okla., cited Chinese and Russian involvement in open-source tech and the risks to government and defense systems.

Sean Cairncross, in remarks at a summit, also said the United States needs to send a stronger message that Chinese cyberattacks are unwelcome.

Short-term and long-term extensions alike for the 2015 Cybersecurity Information Sharing Act have fallen by the wayside despite industry and Trump administration advocacy.

Sean Cairncross also talked about near-term priorities in his first public speech since being confirmed.

Good, bad, puzzling — a March order and June order could have bigger ripples than realized when the president signed them.

It’s a “pivotal” moment for Sean Cairncross, fresh off his Senate confirmation in a changing federal cyber landscape.

The president selected the former RNC, White House and Millennium Challenge Corporation official for the job in February.

The nominee, who doesn’t have as much cyber experience as his predecessors, also touted his credentials and views on current threats during his Senate confirmation hearing.

Plankey’s nomination fills the biggest remaining gap among cyber leaders in the second Trump administration.

The experienced cyber and IT government hand takes on a role leading the cybersecurity half of the agency.