President Donald Trump’s fiscal 2027 budget would slash the Cybersecurity and Infrastructure Security Agency’s total by $707 million, according to a summary released Friday, which would deeply chop down an agency that already took a big hit in Trump’s first year.
Another budget document suggests a smaller — but still substantial — hit of $361 million, with the discrepancy possibly due to the comparison points amid budget uncertainty for CISA’s parent agency, the Department of Homeland Security. DHS and CISA did not immediately respond to a request for clarification.
“At the time the Budget was prepared, the 2026 appropriations bill for the Department of Homeland Security was not enacted, and funding provided by the last continuing resolution it had been operating under (Continuing Appropriations Act, 2026, division A of Public Law 119-37, as amended by division H of Public Law 119-75) had lapsed,” the budget summary notes. “References to 2026 spending in the text and tables for programs and activities normally provided for in the full-year appropriations bill reflect the annualized level provided by the last continuing resolution.”
By either measurement, the proposed budget would cut deeply into an agency that started the Trump administration at roughly $3 billion, and would be substantially below that if Congress enacts the latest blueprint. The budget appendix says CISA would end up with slightly more than $2 billion in discretionary funding under Trump’s plan. For fiscal 2026, appropriators sought to mitigate some of Trump’s proposed CISA reductions.
The 2027 budget summary recycles identical language from the 2026 budget summary, and makes references to ending programs that CISA has already shuttered.
“The Budget refocuses CISA on its core mission — Federal network defense and enhancing the security and resilience of critical infrastructure — while eliminating weaponization and waste,” the summary states in both the 2026 and 2027 documents.
It makes references to getting rid of things that have already been cut, like “external engagement offices such as council management, stakeholder engagement, and international affairs.” It talks about ending programs focused on censorship, something CISA under the Biden administration said it never had, and on “so-called” misinformation, which CISA said it ended during the former president’s term.
Mississippi Rep. Bennie Thompson, the top Democrat on the House Homeland Security Committee, criticized the budget proposal for CISA.
“Like the President’s cyber strategy, the President’s CISA budget reflects his utter lack of understanding of the urgency of the cyber threats we face and how to mobilize the government to help confront them,” he said in a statement to CyberScoop. “As of 2023, CISA was spending $2 million on countering information operations, an effort initially launched at the behest of Congressional Republicans during the first Trump Administration.
“There is nothing that justifies a reckless $700 million cut to CISA, particularly at a time of heightened tensions with Iran and an increasingly aggressive China,” he continued. “I am committed to working with my colleagues to push back against these cuts and ensure we can protect government and critical infrastructure networks.”
