Department of Homeland Security Secretary Markwayne Mullin told Congress Wednesday that the Cybersecurity and Infrastructure Security Agency would ideally have 2,800 personnel, up from approximately 2,200 now and down from 3,400 before the second Trump administration began.

President Donald Trump has pushed to dramatically reduce personnel numbers at the agency, something that has drawn criticism from both Democrats and Republicans on the Hill. Trump has proposed hundreds of millions more in cuts for fiscal 2027.

House Homeland Security Committee Chairman Andrew Garbarino, R-N.Y., asked Mullin at a hearing Wednesday about further proposed CISA budget cuts, saying he was “concerned” about personnel numbers and funding for education programs and whether the fiscal 2027 blueprint would “negatively impact those efforts.”

Mullin said DHS funding lapses have made the department rethink CISA, although the deep CISA personnel reductions predate the recent spate of government shutdowns. 

“We had to readjust the way we’re looking at CISA and better lean on public partnerships,” he said. The agency can work well with 2,800 people “If we can actually have the partnerships we need with states and be able to use the grants, the monies that [we] saved with CISA to be able to invest with local and state municipalities. … We’re not going to fail on the mission we have in front of us.”

CISA personnel figures are in a constant state of flux. The CISA staff figure of 2,200 Mullin gave is down even from December. In March, acting director Nick Andersen said CISA was looking to hire 300 people.

There’s been no proposal from the Trump administration to-date to take funds formerly allocated to CISA and shift them to state governments for cybersecurity. State officials have said CISA budget cuts have made their jobs harder, and most experts have said the Trump administration’s approach to shift cyber responsibilities to states is badly misguided.

Congress has yet to permanently reauthorize the State and Local Cybersecurity Grant Program that expired last year before it got a temporary extension and is due to expire again in September.

CISA has gone without a Senate-confirmed director for the entirety of the second Trump administration. Mullin said “we’ve got a person soon to be nominated that will be running CISA that has the ability to recruit and focus on the authorities we have.”

Mullin said CISA has “unique” authorities that haven’t “been completely utilized.” 

“We want CISA to be the leader in cybersecurity,” he said. “They should be and they will be.”

A House Appropriations subcommittee is set to consider a DHS funding bill Friday.

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Sean Plankey, most recently the nominee for director of the Cybersecurity and Infrastructure Security Agency, is joining defense technology company UFORCE as its U.S. chief executive officer.

The London-based company created out of nine Ukrainian-based firms announced Plankey’s move Monday less than a month after he withdrew his nomination amid difficulties overcoming objections from senators who had placed a hold on it.

Plankey’s a cyber veteran of the first Trump administration but also had been serving as senior adviser on the Coast Guard at the Homeland Security Department, retiring from the Coast Guard this year.

UFORCE makes combat drones for air, land and sea and plans to have its first U.S.-made unmanned surface vessels hitting the water by this summer. The startup reportedly brought its valuation to $1 billion earlier this year.

“The United States and its allies are looking for defense technology partners that can move

quickly, innovate continuously and deliver systems already proven across theaters of combat,” Plankey said in a statement. “UFORCE is uniquely positioned to meet that demand and we will do that by manufacturing these capabilities in America.”

Said Oleg Rogynskyy, co-founder and CEO of UFORCE: “Sean’s decision to join UFORCE reflects the strength of our platform and the growing recognition that the future of autonomous defense will be shaped by companies able to combine real combat validation with scalable Western deployment,” 

CISA has gone without a permanent director for the entirety of the second Trump administration, and the president has yet to put forward a nominee for the position since Plankey’s withdrawal last month.

Former Oklahoma senator Markwayne Mullin took over as DHS secretary in late March.

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The Senate’s top Democrat called on the Department of Homeland Security Friday to work closely with state and local governments to defend against artificial intelligence-strengthened hacks. 

Senate Minority Leader Chuck Schumer, D-N.Y., wrote to DHS Secretary Markwayne Mullin to make sure state, local, tribal and territorial (SLTT) governments aren’t left behind as AI models advance, posing new hacking threats.

“There is a race between cybersecurity defenders and AI-enabled hacking — and there’s no time to waste,” Schumer wrote.

“While the White House has reportedly begun hosting meetings about its internal security priorities following these frontier AI cyber breakthroughs, it is glaringly obvious that the Department of Homeland Security needs an updated plan for coordinating these efforts with [state, local, tribal and territorial] governments and implementing procedures to reduce the risk of disruptive cyberattacks enabled by frontier AI,” he stated.

Schumer said he was worried about the capabilities of DHS and its Cybersecurity and Infrastructure Security Agency to carry out that coordination, given federal funding cuts to the Multistate Information Sharing and Analysis Center, and the lack of a Senate-confirmed CISA director for the duration of the second Trump administration.

Schumer wants a plan from DHS by July 1 on coordinating with state and local governments on a range of questions, such as how to identify top AI talent, carry out rapid patching and conduct risk assessments.

“AI is changing the cyber battlefield fast — and we cannot let hackers get there first,” Schumer said in comments accompanying the letter. “Hospitals, power grids, water systems, schools, elections, and emergency services cannot be left exposed while criminal gangs and state-backed hackers race to exploit new AI tools. DHS must immediately help states and localities find and fix vulnerabilities before Americans are hit with outages, disruptions, and attacks that could put lives and livelihoods at risk.”

CISA is using AI to help on the defensive side internally, agency officials recently said.

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Sean Plankey, the long-sidelined nominee to lead the Cybersecurity and Infrastructure Security Agency, asked President Donald Trump on Wednesday to withdraw his nomination.

“At this point in time, I am asking the President to remove my nomination from consideration,” he said in a notification letter seen by CyberScoop. “After thirteen months since my initial nomination, it has become clear that the Senate will not confirm me.”

Plankey’s request comes weeks after the Senate confirmed MarkWayne Mullin to lead the Department of Homeland Security, CISA’s parent agency.

“The Nation and Department of Homeland Security Secretary MarkWayne Mullin requires a confirmed director of CISA without further delay,” Plankey wrote, adding thanks to Trump himself. “While I humbly request the removal of my nomination, I wholeheartedly support President Trump’s upcoming nomination for CISA and look forward to the continued success of the United States of America.”

Plankey’s nomination was considered dead by most at the end of last year. His renomination this year caught many by surprise, with CBS reporting the paperwork filing was an accident. The White House denied that.

Numerous senators had placed holds on his nomination, including GOP senators who held him up over matters unrelated to cybersecurity. Most prominently, Sen. Rick Scott, R-Fla, had placed a hold on his nomination over a Coast Guard contract with a Florida company that DHS had partially canceled.

Plankey had been serving as an adviser to then-DHS Secretary Kristi Noem on Coast Guard matters. He retired from the Coast Guard last month.

While Plankey awaited confirmation, Bridget Bean, then Madhu Gottumukkala, served as acting director. Gottumukkala recently left the position for another at DHS amid widespread complaints about his leadership. Nick Andersen is currently serving as acting director.

Plankey told CyberScoop he had discussed withdrawing his nomination with Mullin. He said he has a “positive relationship” with Mullin and supported his leadership of DHS. And Plankey called Andersen “one of the most competent cybersecurity people in the country.”

Politico first reported Plankey’s withdrawal request. The White House and CISA did not respond to an official request for comment. When asked for a comment, a DHS spokesperson said the department doesn’t comment on personnel matters.

Plankey’s plans leave the agency with yet more upheaval. Trump has dramatically cut personnel and budget at CISA, with many top officials pushed out or otherwise departing. He has proposed deeper budget cuts still for fiscal year 2027.

Updated 4/22/26: to include DHS response.

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