
Sean Plankey
Sean Plankey is the acting director of the Cybersecurity and Infrastructure Security Agency (CISA), currently overseeing the agency's response to a significant cybersecurity incident involving breaches of SharePoint servers. His leadership has been crucial as CISA works to mitigate the effects of the attack and improve national cybersecurity protocols.
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Sean Plankey, overseeing the partnership as the CEO of UForce USA, previously served as senior adviser on coast guard issues to then-US secretary of homeland security Kristi Noem.
US to make Kyiv’s Magura sea drones for the first timeTaipei Times – major English newspaper in Taiwan, est. 1999·
Taiwan· 2026-07-25
CISA is being led by an acting director, as nominee Sean Plankey has not been confirmed.
Global hacking attack on Microsoft product hits US, state agencies, researchers sayThe New Zealand Herald – country’s largest newspaper, est. 1863·
New Zealand· 2025-07-20






