Brian M. Harrell (@BrianMHarrell) header
Brian M. Harrell (@BrianMHarrell) profile picture

A connoisseur of fine security practices. Husband, father, Marine, and former Assistant Secretary at @DHSgov under POTUS 45.

Washington, DC
Joined March 2016
Photo by Brian M. Harrell (@BrianMHarrell)Photo by Brian M. Harrell (@BrianMHarrell)Photo by Brian M. Harrell (@BrianMHarrell)Photo by Brian M. Harrell (@BrianMHarrell)Photo by Brian M. Harrell (@BrianMHarrell)Photo by Brian M. Harrell (@BrianMHarrell)Photo by Brian M. Harrell (@BrianMHarrell)Photo by Brian M. Harrell (@BrianMHarrell)Photo by Brian M. Harrell (@BrianMHarrell)Photo by Brian M. Harrell (@BrianMHarrell)
Leading the charge in digital defense! Congratulations to Brian Harrell for winning the Prestigious Top Global CISO Award 2025 at CyberDefenseCon, recognized for groundbreaking leadership and innovation in cybersecurity. 👏 #CyberDefenseCon2025 #CISO #Leadership
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Brian M. Harrell retweeted
New Orleans' #Terroristattack on Bourbon St New Year's revelers is not the 1st time suspected terrorists used car-ramming to kill. Recently a German Christmas market saw a similar attack. Here's a summary of when crowds were targeted the same way before. foxnews.com/us/new-orleans-t…
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Brian M. Harrell retweeted
Episode #175: "Safeguarding Today's Grid from Modern Threats" with Brian Harrell, Vice President and Chief Security Officer at AVANGRID [an Energy Central Power Perspectives™ Podcast] buff.ly/4dk52As
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The SIA Nominations Committee has recommended four individuals to serve as members of the SIA Board of Directors for an initial two-year term and three individuals for a second two-year term pursuant to the SIA bylaws. Learn more: securityindustry.org/2024/02… #securityindustry
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On Thursday, leaders from CMP met with members of state and local police, county sheriffs, Border Patrol, the FBI and other stakeholders to discuss a range of security issues regarding the safe and reliable transmission of power to Mainers, including the NECEC. 1/2 #mepolitics
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.@CISAHarrell leads a discussion on mitigating risk from #insiderthreat w/experts Cathy Lanier of @NFL, Randall Trzeciak of @carnegiemellon, @marktw, Frank Cilluffo of @AuburnCyber & Stan Partlow of @AEPNews
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Brian M. Harrell retweeted
Did you know that an expressed or implied threat could be an indicator of terrorism-related activity? If you see this happening, say something to local authorities. #SeeSay #ProtectYourEveryday
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NEW! Updated Bag Search Procedures Guide. This can be useful for events, concerts, festivals and other public gatherings. dhs.gov/publication/public-v…
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Replying to @CISAgov
@CISAgov continues to support major sports events and mass gatherings throughout the country including the #Daytona500⁠ ⁠, #NBAAllStarWeekend, and the many #MardiGras parades this weekend in the @CityOfNOLA.
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Be safe, be mindful of your surroundings, and enjoy the night with friends and family. #SeeSay
As you ring in the New Year, "If You See Something, Say Something®" reminds you to be aware of your surroundings tonight and report suspicious activity to local authorities. #SeeSay #protectyoureveryday
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It’s official! Welcome Assistant Director for Infrastructure Security @CISAHarrell (being sworn in by Director @CISAKrebs).
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I’m thrilled to be joining @CISAgov and working to secure our Nation’s infrastructure. Please follow me here for updates on all things #InfrastructureSecurity.
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Brian Harrell has joined the Cybersecurity and Infrastructure Security Agency #CISA as the President’s pick to lead the Infrastructure Security Division go.usa.gov/xEqtT
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Brian M. Harrell retweeted
This year, @DukeEnergy is being recognized for creating a physical security awareness program for its employees to reinforce and remind everyone of the risks of all breaches, however small bit.ly/2QtPaV6 #HomelandHeroes
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.@DHSgov and @FBI partnered to develop the new Security and Resiliency Guide: Counter-Improvised Explosive Device (C-IED) Concepts, Common Goals, and Available Assistance. To access this free guide, visit: dhs.gov/publication/security…
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#DYK @DHSgov offers resources on securing soft targets and crowded places? Learn more at bit.ly/SoftTargetSecurity
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Brian M. Harrell retweeted
#Cybersecurity is national security. After passing unanimously in the House of Representatives today, Congress is sending legislation to stand up a cybersecurity agency in DHS. The bill is now on its way to @realDonaldTrump to be signed into law. go.usa.gov/xPfdC
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BREAKING: @RepMcCaul's landmark cybersecurity bill, the Cybersecurity and Infrastructure Security Agency Act, just overcame its final hurdle in the House before heading to @POTUS' desk. This bill is a critical step in better defending our nation against #cyber threats. #CISA
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