CBO confirms hack, says it has implemented new security measures

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This article was published 06/11/2025 (320 days ago), so information in it may no longer be current.

WASHINGTON (AP) — The Congressional Budget Office on Thursday confirmed it had been hacked, potentially disclosing important government data to malicious actors.

The small government office, with some 275 employees, provides objective, impartial analysis to support lawmakers during the budget process. It is required to produce a cost estimate for nearly every bill approved by a House or Senate committee and will weigh in earlier when asked to do so by lawmakers.

Caitlin Emma, a spokeswoman for the CBO said in a written statement that the agency “has identified the security incident, has taken immediate action to contain it, and has implemented additional monitoring and new security controls to further protect the agency’s systems going forward.”

The Washington Post first wrote the story on the CBO hack, stating that the intrusion was done by a suspected foreign actor, citing four anonymous people familiar with the situation.

The CBO did not confirm whether the data breach was done by a foreign actor.

“The incident is being investigated and work for the Congress continues,” Emma said. “Like other government agencies and private sector entities, CBO occasionally faces threats to its network and continually monitors to address those threats.”

The CBO manages a variety of massive data sources that relate to a multitude of policy issues — from the Trump administration’s mass deportation plans, to the unprecedented implementation of sweeping tariffs on countries around the world, to massive tax and spending cuts passed into law this summer.