Foreign hackers breach Congressional Budget Office


Summary

CBO cybersecurity breach

Officials at the Congressional Budget Office confirmed the agency was hacked by a suspected foreign agent, as reported by The Washington Post.

Potential data exposure

There are concerns that communications between lawmakers’ offices and CBO researchers may have been compromised.

CBO mission and role

The Congressional Budget Office, established in 1974, is responsible for providing economic projections to lawmakers.


Full story

Officials at the Congressional Budget Office confirmed the office was hacked by a suspected foreign agent. According to The Washington Post, the hack potentially exposed key financial data lawmakers use to craft legislation. 

The office said members discovered the hack in the last few days and are now worried communications between lawmakers’ offices and nonpartisan researchers were compromised by an unknown foreign agent. Officials told lawmakers that they caught the hacker early.

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Unnamed sources told WaPo that some congressional offices have stopped emailing the CBO, fearing it could pose a cybersecurity risk. 

“The Congressional Budget Office 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 CBO said in a statement. “The incident is being investigated and work for the Congress continues.”

What does the CBO do?

The CBO was established in 1974 and creates economic projections for lawmakers. Every bill that is taken up in either congressional chamber receives a CBO “score” of how much it would add to or subtract from the national debt. 

The office acts as a foil to the White House’s Council of Economic Advisers and the Office of Management and Budget, providing Congress with its own analysts. 

Republicans criticized the office over the summer after it released cost estimates for President Donald Trump’s “One Big Beautiful Bill Act,” which determined it would add trillions to the national debt. In response, Senate Republicans rewrote some rules on how the CBO’s scores would be applied.

Cole Lauterbach (Managing Editor) contributed to this report.
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Why this story matters

A cybersecurity breach at the Congressional Budget Office raises concerns over the security of sensitive financial data and communications critical to the legislative process, potentially affecting lawmakers' ability to craft informed policy.

Cybersecurity vulnerability

The hack highlights potential weaknesses in government digital infrastructure, emphasizing the need for stronger measures to protect sensitive legislative information from foreign interference.

Legislative process integrity

The breach may have compromised key data and communications, possibly undermining the accuracy of economic analyses used by lawmakers to evaluate the costs of proposed legislation.

Foreign interference risk

Officials and reporting from The Washington Post indicate that a suspected foreign agent was involved, raising persistent concerns about external threats to U.S. institutions and democratic processes.

SAN provides
Unbiased. Straight Facts.

Don’t just take our word for it.


Certified balanced reporting

According to media bias experts at AllSides

AllSides Certified Balanced May 2025

Transparent and credible

Awarded a perfect reliability rating from NewsGuard

100/100

Welcome back to trustworthy journalism.

Find out more

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