Marci McCarthy @CISAMarci
Director of Public Affairs, @CISAgov—America’s Cyber Defense Agency—Make America Secure Again 🇺🇸💻 #MASA. ❤️/RT ≠ endorsement 🔗 https://t.co/Bzc04q9ZIp Washington, D.C. Joined May 2025-
Tweets98
-
Followers530
-
Following75
-
Likes87
🛡️Cyber volunteers = community protectors! 💻✨ On #InternationalDayOfCharity, explore how volunteer programs boost the cyber workforce & support high-risk communities. 🧰🔐 Start here 👉 cisa.gov/audiences/high… 💙🌍
This week I was honored to swear in Nick Andersen as @CISAgov new Executive Assistant Director for the Cybersecurity Division. I know from experience the critical importance of cybersecurity in safeguarding our nation’s infrastructure and keeping us safe, which is why it has been…
You’ve heard of Men in Black—protecting the Earth from aliens.🌎👽Meet the Women in Black! No neuralyzers here—just 2 @CISAgov leaders, suited up & mission-ready, helping to protect the nation from real-world threats to our critical infrastructure.🛡️🖤
SBOM = software “ingredients list” 🧾 🔐 Boosts transparency 📉 Reduces risk 🌐 Supports Secure by Design Learn more about this global release ⬇️
SBOM = software “ingredients list” 🧾 🔐 Boosts transparency 📉 Reduces risk 🌐 Supports Secure by Design Learn more about this global release ⬇️
👋Welcome aboard, Nick! We’re thrilled to have you as @CISAgov’s new Executive Assistant Director for Cybersecurity! 🛡️💻With your support, we will work to make our nation's critical infrastructure secure. 🚀👏
👋Welcome aboard, Nick! We’re thrilled to have you as @CISAgov’s new Executive Assistant Director for Cybersecurity! 🛡️💻With your support, we will work to make our nation's critical infrastructure secure. 🚀👏
🏗️ Whether you're managing power grids, pipelines, or ports, @CISAgov has a full suite of 🆓 tools & resources to help you stay secure and resilient. 🚢Find the right services for your org.👉go.dhs.gov/ich
Just announced! Learn more: cisa.gov/news-events/ne… 📷
🚨This is not a theoretical threat! Chinese state-sponsored actors are targeting edge devices to gain long-term access to critical networks. We urge your organization to act now!
🚨This is not a theoretical threat! Chinese state-sponsored actors are targeting edge devices to gain long-term access to critical networks. We urge your organization to act now!
🚨New from @CISAgov: The Software Acquisition Guide Web Tool is live! This no-cost, interactive tool helps streamline software procurement, improve risk awareness, & support secure-by-design practices. Try it now!
🚨New from @CISAgov: The Software Acquisition Guide Web Tool is live! This no-cost, interactive tool helps streamline software procurement, improve risk awareness, & support secure-by-design practices. Try it now!
We just released updated #SBOM guidance to boost software transparency & supply chain security. SBOMs = software “ingredients lists” 🧾 🔹Request them from vendors 🔹Integrate SBOM into workflows 🔹Build in security by design
We just released updated #SBOM guidance to boost software transparency & supply chain security. SBOMs = software “ingredients lists” 🧾 🔹Request them from vendors 🔹Integrate SBOM into workflows 🔹Build in security by design
New blog drop! @CISAgov teamed up to close the national software understanding gap with insights from @SandiaLabs. Experts & mission owners: let’s connect, collaborate, and build smarter, together. Read the blog! 👇
New blog drop! @CISAgov teamed up to close the national software understanding gap with insights from @SandiaLabs. Experts & mission owners: let’s connect, collaborate, and build smarter, together. Read the blog! 👇
✏️Remember cursive? Georgia 3rd–5th graders will! This #BackToSchool season, they’re learning loops again—on paper and in code. Pen strokes or Python scripts, every student deserves the tools to write their future. 🖥️🖊️See how: go.dhs.gov/i5s
🧬Thanks to @DC_BHV, we saw what good cyber citizenship looks like. Companies like @AbbottNews, @Medtronic, @Philips & more invited hackers to test their devices—finding flaws before harm. We applaud their CVE work & commitment to safer healthcare. 👏👏👏#CVE
📺 Tune in! Thurs. Aug. 14 at 11 AM ET, I’ll be making my first TV interview debut as Director of Public Affairs at @CISAgov on @RSBNetwork w/ Robert McNeily. 🎙️ We’ll be talking about CISA’s role in protecting the homeland in cyberspace! 📡 Watch here: rsbntv.maz.tv/apps/3578/1397…
🛡️Protecting critical infrastructure starts with 1 simple step: knowing what you’ve got. That’s why @CISAgov just released new guidance to help OT owners and operators build strong, defensible architectures.💪
🛡️Protecting critical infrastructure starts with 1 simple step: knowing what you’ve got. That’s why @CISAgov just released new guidance to help OT owners and operators build strong, defensible architectures.💪
This #DancingQueen is having the time of her life at @CISAgov💃🎶I still remember grooving to this hit on vinyl in my old bedroom. Like records, cybersecurity must evolve to stay strong. On #VinylRecordDay, we celebrate resilience—in music & mission. 🪩📀 go.dhs.gov/oFy
We appreciate all the groups that came through for a tour of our Village. Thanks again to @CISAMarci & Team @CISAgov taking the time to join us!
Being a proud resident of @ItsInDeKalb, last week’s deadly shooting at @EmoryUniversity & @CDCgov hit home. An officer tragically lost his life. We train for moments like this—not from fear, but to survive. Run. Hide. Fight. Learn how to protect yourself👉 go.dhs.gov/4TA
Strength in collaboration. 💪 Proud to partner with @CISAgov and the @CVEProgram, working together to strengthen cybersecurity for all. 📸@CISAMarci #DEFCON33 #CISA #CNA #Cybersecurity
Steven Overly @StevenOverly
8K Followers 3K Following Editorial Director @POLITICOLive & Host @POLITICO Tech. Past: @washingtonpost. @Bagehots alum.
Andrew B. Quiming @QuimingAnd8253
3 Followers 63 Following Chief Information Security Officer (CISO) at Before The Future
rayj0674 @rayj0674
0 Followers 858 Following
Perly 🦈 @_Shark_byte
455 Followers 988 Following professional side quester | cybersecurity, startups & design | Host of @builtonwhy | ✡️
Karen Muhlethaler @KarenMuhle23440
2 Followers 151 Following
Bolin Isaac @BolinIsaac76386
106 Followers 3K Following Proud To be an American! Devoted Catholic. MAGA! 💯 “The heart of the wise inclines to the right, but the heart of a fool to the left” I just want to be LOVE
LaRel @the_relworld
756 Followers 878 Following
AQUILA Liberty @Aquilaintruth
54 Followers 2K Following 47, Trust in God | Geopolitical the Watcher M | Former Value Chain Procurement & MKT mgr |🇰🇷🇺🇸 #WeGoTogether #StopTheSteal #YoonAgain #Freedom
John 🇧🇷🇺🇸 @jpfdevs
385 Followers 3K Following #DCPT #PenetrationTester #RedTeam #OffensiveSecurity #Infosec Cybersecurity engineer https://t.co/LPRdqkXbvi https://t.co/cVGsuS2zZv
明天 @mngtin24986
0 Followers 16 Following
Naimat-ullah Mamundza... @UkTiktok78987
5 Followers 140 Following
Mary @ainsworth90mary
710 Followers 3K Following
Sonia pat @Sonia_pat6
294 Followers 2K Following If you want it to reflect a specific profession, belief, or vibe (spiritual, creative, activist, etc.), I can tailor it further. Just let me know!
Deeoji @Deeoji50601
27 Followers 1K Following
Danish Mehmood @danish_mehm00d
2 Followers 464 Following R3d_t3am | Security Researcher | Pentester & Technology lover
Kim Kutschbach @KimKutschbach
52 Followers 413 Following
I'M THE ONLY REAL #CA... @CAFFREY_USA
460 Followers 3K Following Likes=Saved. #IrishRomanCatholicUSA #StraightPride #ProudToBeElderly @maryKEcaffrey1™. My [email protected]+ @marycaffrey11(#3yrs STOLEN/CLOSED 4/2018).
Puiktirj @Puiktirj517
76 Followers 1K Following
Christopher Grimaldo @GrimaldoChris
549 Followers 5K Following
James Freeman @DrJAFIII
926 Followers 2K Following
Casey @_subTee
25 Followers 400 Following I like to read . Founder , Researcher @malwarialabs 🦟⚡️ -=-WIN-=-
James Freeman III, Ph... @KG8DZ
372 Followers 3K Following Aviation-private pilot, Amateur (Ham) Radio Extra Class - EM89, Technology, Weather Spotter, and Science enthusiast. Personal/Hobby account.
AliK_InDaHouse @AliK_InDaHouse
41 Followers 369 Following
Tim Brown @timb_machine
3K Followers 5K Following push(@twitter, 'Adversarial Engineer'); # i tweet in Perl
Jasper Hamill @jasperhamill
4K Followers 3K Following Independent tech journalist and PR consultant (depending on which day you ask).
Brandt Allain @BrandtAllain
28 Followers 1K Following
Jaden rossie @JadenRossie15
303 Followers 6K Following Live 🍀 Love ❤️ Explore 🌏 Advocate for Mental health awareness.
Silas Cutler (p1nk) @silascutler
13K Followers 2K Following You may know me from your logs Research @Censys Advisor @IST_org & #DEVSEC Built @Only_Scans, @mal_share, #KeyDrop
elfs @elfs12510
77 Followers 558 Following
Nasrullah Official @Nasrullah_003
75 Followers 608 Following Hacker mindset | Tech builder |Future-focused |ethically wired |Coding the future | Cybersecurity addict | Tech isn’t just tools—it’s transformation|
Sharon Seckinger @SeckingerS7039
281 Followers 324 Following
Michael Fritz @FritzF0220
487 Followers 5K Following I want to travel and see more of the world, taste different cuisines, share laughter, hugs &cries. Go to museums, jazz spots, intimate concerts & workout.
Mario Stylianou @supermjr
355 Followers 918 Following It's a me a Mario! Mastodon: @[email protected]
Morris Mbogo @m0ridjo
2K Followers 7K Following Kali Linux enthusiast - Pentester - CyberSecurity Professional
Rascal 🎗️ @PurimShpiel
21 Followers 60 Following Sharing tech and other things I love. Pro 🇮🇱 pro-West 🇺🇦 🇱🇹 🏴
BrianJOravetz @BrianOrave22303
239 Followers 1K Following Founder @RedoVoting | Tech Disruptor & CEO. Proud Dad 👨👩👧👦 | Army Vet 🇺🇸 | Entrepreneur | OG NHB/MMA Guy 🥊.
Fast verif ai @fast_verif_ai
198 Followers 2K Following Fast Verify identities instantly with AI-powered technology, ensuring secure and seamless transactions while preventing fraud and protecting sensitive data
Uiqauicor @Uiqauicor7954
12 Followers 1K Following
Dwaldor @Dwaldor950046
98 Followers 3K Following
Jim Polk 🇺🇸 @JimPolk
8K Followers 9K Following Conservative Christian Looking for answers that make sense. Dialysis is a drag. The world doesn't exist in a series of absolutes except truth, honesty & love.
Ren but (Parody) @ren_daga_otaku
125 Followers 2K Following Mostly on bsky because it's a dream @ ren-daga-otaku! Infosec hobbyist, armchair software developer, and wannabe script kiddie. Loves #このはな綺譚 #konohanakitan
Slabrue @SlabrueNye
34 Followers 2K Following The more hypocritical the more painful, the more calm the happier
DARPA @DARPA
270K Followers 394 Following Official account of the Defense Advanced Research Projects Agency. Follows/retweets/links do not = endorsement. Breakthrough technologies for national security.
NCSC UK @NCSC
144K Followers 456 Following We are the National Cyber Security Centre – part of the UK’s intelligence & cyber agency @GCHQ. We help to make the UK the safest place to live and work online.
Rep. Barry Loudermilk @RepLoudermilk
55K Followers 2K Following Representing Georgia's 11th Congressional District, which includes all of Bartow, Gordon, and Pickens counties and portions of Cherokee and Cobb.
National Institute of... @NIST
90K Followers 473 Following NIST promotes U.S. innovation & competitiveness by advancing measurement science, standards & tech to enhance economic security & improve our quality of life.
NGA @NGA_GEOINT
102K Followers 210 Following This is the official account for the National Geospatial-Intelligence Agency.
Defense Counterintell... @DCSAgov
13K Followers 246 Following America's Gatekeeper News & info on the Defense Counterintelligence and Security Agency (DCSA) (Following does not=endorsement.)
DHS S&T @dhsscitech
33K Followers 392 Following Research and development arm of the Department of Homeland Security. Likes, retweets, etc. ≠ endorsement. Comment Policy: https://t.co/HQr5xUZMhy
USCIS Director @USCISDirector
25K Followers 21 Following This is the ARCHIVED X account of the former Director of U.S. Citizenship and Immigration Services.
Cybersecurity @ NIST @NISTcyber
90K Followers 522 Following Official handle covering all things cybersecurity at NIST
CIA Director John Rat... @CIADirector
674K Followers 954 Following Director of CIA for Trump 47. Director of National Intelligence for Trump 45. Former Congressman. Personal account. For official CIA news, follow @DCIARatcliffe
Buddy Carter @RepBuddyCarter
44K Followers 464 Following Proudly serving Georgia's 1st Congressional District 👇Sign up for my e-newsletter👇
Donald J. Trump @realDonaldTrump
108.8M Followers 53 Following 45th & 47th President of the United States of America🇺🇸
Office of the First L... @FirstLadyOffice
71K Followers 11 Following Official account for the Office of First Lady Melania Trump. Also follow @FLOTUS @POTUS @WhiteHouse
Know2Protect @Know2Protect
2K Followers 184 Following Know2Protect is a DHS public awareness campaign to combat online child sexual exploitation and abuse. Together We Can Stop Online Child Exploitation™.
SchoolSafety.gov @SchoolSafetyGov
3K Followers 286 Following @SchoolSafetyGov is the official account of https://t.co/EznPHLmdRz. Likes, links, reposts, follows ≠ endorsements.
IT-ISAC @ITISAC
2K Followers 587 Following The IT-ISAC is a non-profit corporation formed by IT companies as a specialized forum for managing risks to their corporations and the IT infrastructure.
White House Office of... @ONCD
23K Followers 74 Following ONCD’s mission is to advance national security, economic prosperity, and technological innovation through cybersecurity policy leadership.
Kelly Loeffler @SBA_Kelly
111K Followers 58 Following 28th Administrator of the U.S. Small Business Administration (@SBAGov). Making Main Street Great Again.
U.S. Army Cyber Cente... @Army_Cyber_CoE
14K Followers 512 Following Cyber threats demand new approaches to managing and securing information and ensuring our ability to operate.
Attorney General Pame... @AGPamBondi
1.0M Followers 9 Following 87th Attorney General serving under the leadership of @POTUS Trump 🇺🇸
Senate Democrats @SenateDems
1.2M Followers 2K Following We are the Senate Democrats, and we're working hard for the American people.
House Democrats @HouseDemocrats
1.2M Followers 655 Following We are the Democratic Caucus of the United States House of Representatives 🇺🇸 Chair: @RepPeteAguilar | Vice Chair: @RepTedLieu
House Judiciary GOP �... @JudiciaryGOP
560K Followers 810 Following Official Twitter for the House Committee on the Judiciary, Republicans | Est. 1813 | Chairman @Jim_Jordan
House Republicans @HouseGOP
1.8M Followers 643 Following We are the Republican Conference in the United States House of Representatives 🇺🇸 Led by Chairwoman @RepLisaMcClain
Congressman Josh Brec... @RepBrecheen
17K Followers 497 Following Christian | Husband | Father | Fourth generation rancher | Congressman for Oklahoma’s 2nd Congressional District @housebudgetGOP @HomelandGOP @freedomcaucus
Pete Stauber @RepPeteStauber
19K Followers 627 Following Proud to represent Minnesota's 8th Congressional District.
The White House @WhiteHouse
2.5M Followers 6 Following The Golden Age of America Begins Right Now. 📱 Text USA to 45470 to receive alerts.
Secretary Brooke Roll... @SecRollins
159K Followers 143 Following The 33rd U.S. Secretary of Agriculture under the leadership of @POTUS Trump. 🌾
U.S. Attorneys @USAttorneys
39K Followers 362 Following Official account of the United States Attorneys' Offices. Privacy policy: https://t.co/cvBSogxfCr
Bureau of Cyberspace ... @StateCDP
25K Followers 248 Following We lead @StateDept's work on cyberspace and digital technology diplomacy.
The FAA ✈️ @FAANews
517K Followers 2K Following Official account of the Federal Aviation Administration. Following, mention or RP does not mean endorsement.
NSA Cyber @NSACyber
149K Followers 12 Following We protect our nation’s most sensitive systems against cyber threats. Likes, retweets, and follows ≠ endorsement.
Marine Forces Cybersp... @MARFORCYBER
16K Followers 273 Following Official account for U.S. Marine Corps Forces Cyberspace Command. #PeopleIdeasThings Following, retweets & links do not constitute endorsement.
Army Cyber Command @ARCYBER
41K Followers 572 Following Official X page of U.S. Army Cyber Command (Following, retweets and links do not equal endorsement)
GSA @USGSA
49K Followers 231 Following Delivering the best value in real estate, acquisition, and technology services to government and the American people. https://t.co/MuGZl43Zqe
FBI Director Kash Pat... @FBIDirectorKash
1.7M Followers 168 Following Director of the Federal Bureau of Investigation, #9
U.S. Cyber Command @US_CYBERCOM
139K Followers 265 Following Official Twitter page of U.S. Cyber Command (Following, retweets and links do not equal endorsement)
Office of the DNI @ODNIgov
295K Followers 126 Following The DNI oversees the U.S. Intelligence Community and serves as principal adviser to the President on intelligence issues.
DIA @DefenseIntel
273K Followers 143 Following The Defense Intelligence Agency is first in all-source military intelligence in support of warfighters, defense planners, & policymakers.
National Guard @USNationalGuard
746K Followers 852 Following Official tweets from National Guard Bureau. Serving throughout 54 states, territories & D.C. and across the globe. (Following, RTs, likes, links ≠ endorsement.)
NSA/CSS @NSAGov
1.1M Followers 0 Following National Security Agency/Central Security Service official account, home to America's codemakers and codebreakers. Likes, retweets, and follows ≠ endorsement.
U.S. Navy @USNavy
1.8M Followers 1K Following Official X account of the #USNavy. Celebrating 250 years of service, strength and sea power. (Following, reposts and links ≠ endorsement)
Department of State @StateDept
6.6M Followers 430 Following Leading U.S. foreign policy and American diplomacy since 1789. For all Department accounts: https://t.co/VpbtF1M8HK
CIA @CIA
3.6M Followers 55 Following We are the Nation's first line of defense. We accomplish what others cannot accomplish and go where others cannot go. https://t.co/yhjtYvFBiJ
U.S. Air Force @usairforce
1.7M Followers 643 Following Official U.S. Air Force X: The appearance of hyperlinks does not = endorsement. Comment moderation & endorsement disclaimer: https://t.co/ueEIVwJZNh
U.S. Army @USArmy
2.1M Followers 139 Following Official X page of the United States Army. (Following, shares, likes and links ≠ endorsement)
Department of War �... @DeptofWar
6.7M Followers 693 Following Official U.S. Department of War X account.
FBI @FBI
3.9M Followers 2K Following Official FBI X account. Submit tips at https://t.co/tGqFRcJykB. Public info may be used for authorized purposes: https://t.co/x6bfDUEYeJ.Trends for United States
You might like
