Overview
- The Congressional Budget Office said it contained a security incident and deployed additional monitoring and controls while an investigation proceeds, adding that work for Congress continues.
- The Washington Post reported that officials suspect a foreign actor carried out the breach, which was discovered in recent days.
- Reporting says attackers may have accessed emails and internal chat logs between congressional offices and CBO analysts.
- Some offices on Capitol Hill have paused emailing the CBO out of caution, though officials believe the intrusion was caught early.
- The episode follows CISA emergency directives highlighting exploitable Cisco and F5 vulnerabilities across federal networks.