The Congressional Budget Office identified a cyber “security incident,” a spokesperson for the office said Thursday, posing vulnerabilities for a key arm of Congress.

The CBO — a nonpartisan agency tasked with providing economic and budgetary information to Congress — said Thursday that officials had taken “immediate action to contain” the breach as officials investigate the incident.

“Like other government agencies and private sector entities, CBO occasionally faces threats to its network and continually monitors to address those threats,” CBO spokesperson Caitlin Emma said in a statement.

The Washington Post initially reported the breach may…

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