5 hours ago · United States
DHS says nationwide ground stop was not a cyberattack: 'We are built to handle crisis like this'

What's happening
SignalsMonitor is following this as a conflict story. NBC News Top Stories, NPR News, and The Hill are the outlets attached to this story. The reports are tied to United States. The first report grouped here was at 13 Nov 2026, 22:27 UTC. 3 material updates are listed in the timeline. The headline in use is “DHS says nationwide ground stop was not a cyberattack: 'We are built to handle crisis like this'”. This note is SignalsMonitor's own briefing, not the publisher's article.
What we know
Homeland Security Secretary Markwayne Mullin told reporters during a Friday night White House briefing that there was no sign of a cyberattack in today’s ground stoppage.
Story timeline
Reports grouped into this story, earliest first. Exact repeats from the same outlet are collapsed.
- First reported by The Hill
Mullin: No indication of ‘nefarious attack’ on FAA as DHS investigates root cause of telecom outage
- New development reported by NPR News
DHS head Markwayne Mullin says there is not a threat to the U.S. amid FAA ground stop
- New development reported by NBC News Top Stories
DHS says nationwide ground stop was not a cyberattack: 'We are built to handle crisis like this'
Same story, different outlets
3 headlinesEach line is that outlet's headline. The article stays on the publisher's site.
- NBC News Top StoriesDHS says nationwide ground stop was not a cyberattack: 'We are built to handle crisis like this'
- NPRDHS head Markwayne Mullin says there is not a threat to the U.S. amid FAA ground stop
- The HillMullin: No indication of ‘nefarious attack’ on FAA as DHS investigates root cause of telecom outage