IC Oversight & Authorities — 2026-05-03

1,100 CISA Staff Have Left DHS Amid Partial Government Shutdown

DHS Secretary Markwayne Mullin disclosed on Sunday that approximately 1,100 CISA employees departed the department during the 76-day partial government shutdown, which ended on April 30 when President Trump signed a funding measure the same day the House voted. GovInfoSecurity reported that the shutdown forced CISA into a limited operational posture, with vulnerability coordination suspended, election security support paused, and proactive engagement with critical infrastructure operators curtailed. The approved funding includes $64.4 billion in discretionary DHS spending, with $20 million allocated for hiring critical CISA positions focused on countering China-related threats. Former officials told GovInfoSecurity that CISA could face years of challenges rebuilding following the talent exodus.

Analysis
The 1,100 disclosed departures mark the floor, not the ceiling. Specialized cybersecurity roles require extended recruitment and clearance timelines, and voluntary attrition driven by institutional uncertainty tends to accelerate after a funding gap closes rather than reverse with it. CISA will likely sustain further publicly reported staff reductions before July 2026 as experienced personnel migrate to private-sector alternatives amid unresolved federal workforce uncertainty. The $20 million allocated for China-focused hiring addresses a narrow slice of the damage. Mullin's disclosure, unverified by independent workforce accounting and made in an appropriations context, may be calibrated for budget pressure rather than operational transparency.

4 sources

Mullin: 1.1K CISA staff left DHS amid partial shutdown - The Hill
Message from Secretary Mullin on the End of the DHS Shutdown - U.S. Department of Homeland Security
DHS Shutdown Ends as CISA Faces Long Recovery - GovInfoSecurity
DHS Secretary Markwayne Mullin Reveals the True Cost of the 76-Day Partial Government Shutdown - Townhall