Last mentioned: Mar 25, 2026
Congressional Action
House and Senate lawmakers formally request an OIG investigation into the matter.
Initial Polygraph Failure
Reports indicate the first failed polygraph examination occurred during a routine clearance update.
Acting Director Appointed
The official assumes the role of Acting Director of CISA.
Congressional leaders have called for an Inspector General investigation into reports that a former acting director of the Cybersecurity and Infrastructure Security Agency (CISA) failed multiple polygraph examinations. The probe aims to determine if security protocols were bypassed to maintain the official's access to sensitive national security data.
This page surfaces every story mentioning Department of Homeland Security across our cybersecurity coverage. We track each entity's appearance over time so readers can trace how the narrative evolves — which developments are isolated incidents, which build into longer arcs, and which reframe how operators in the space think about the entity. Story selection uses the same multi-source verification gate applied across the rest of our coverage.
Read our editorial methodology for how we identify, deduplicate, and score entity references. Our glossary defines the technical terms used across stories on this page, and our trends index contextualizes individual developments against the longer-running cybersecurity beat. Cross-entity comparisons live on our compare view.
| What you see | What it tells you |
|---|---|
| Story count | Number of distinct stories where Department of Homeland Security was a primary or referenced actor. |
| Recency clustering | Whether mentions are concentrated in a recent window (a news cycle) or distributed (a sustained arc). |
| Sentiment distribution | Aggregate sentiment of the stories mentioning this entity, weighted by impact score. |
| Cross-niche links | When the same entity surfaces in our sibling networks, we link to those views to enrich context. |