CISAMarci Profile Banner
Marci McCarthy Profile
Marci McCarthy

@CISAMarci

Followers
348
Following
50
Media
20
Statuses
43

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
Don't wanna be here? Send us removal request.
@CISAMarci
Marci McCarthy
11 hours
🤝 The team @CISAgov partners with industry & gov sectors year-round to tackle threats & share resources. Efforts like this keep large events safe & secure! 🎉 Learn more about how we protect public gatherings: #SafetyFirst #MASA.
@CISAgov
Cybersecurity and Infrastructure Security Agency
11 hours
CISA Acting Director Madhu Gottumukkala recently joined our Region 3 team for a site visit at Lincoln Financial Field where we collaborated with our regional and private sector partners to ensure safety and security for the duration of the 2025 FIFA Club World Cup.
Tweet media one
Tweet media two
Tweet media three
0
4
2
@CISAMarci
Marci McCarthy
3 days
🇺🇸 Today, we celebrate the birth of our nation and the freedoms we cherish. I am honored to spend this day in our nation’s capital, truly living history in the front row. Here's to celebration, joy, & reflection. #IndependenceDay #AmericaFirst
Tweet media one
0
2
9
@CISAMarci
Marci McCarthy
4 days
RT @CISAgov: We’re celebrating America’s 249th birthday early by reflecting on our nation’s rich history and enduring strength. We’re honor….
0
31
0
@CISAMarci
Marci McCarthy
4 days
RT @WhiteHouse: VICTORY: The One Big Beautiful Bill Passes U.S. Congress, Heads to President Trump’s Desk 🇺🇸🎉
Tweet media one
0
8K
0
@CISAMarci
Marci McCarthy
5 days
🇺🇸 Just in time for #IndependenceDay, I joined the @CISAgov team at Independence Hall to reflect on our nation's past & the importance of safeguarding highly symbolic infrastructure for the future.🎆#FourthOfJuly
Tweet media one
3
2
10
@CISAMarci
Marci McCarthy
5 days
🎉WOW, time flies!🦅Today I celebrate 1 month at @CISAgov! Thrilled to share my journey in how we protect our nation's cybersecurity & critical infrastructure. From SLTT to securing our everyday lives, follow along as we live history in the front row! #MASA
0
3
14
@CISAMarci
Marci McCarthy
6 days
Thanks @foxandfriends for sharing our message on the recent so called “cyber attack” by Iran-linked hackers targeting @POTUS & our dedicated public servants.🛡️Rest assured, these criminals will be found & brought to justice.⚖️ #MASA #AmericaFirst @CISAgov
8
24
32
@CISAMarci
Marci McCarthy
7 days
RT @CISAgov:
Tweet media one
0
495
0
@CISAMarci
Marci McCarthy
8 days
RT @CISAgov: Iranian-affiliated cyber actors and hacktivist groups may conduct malicious cyber activity. Read our joint fact sheet to defen….
0
133
0
@CISAMarci
Marci McCarthy
11 days
🔥I braved the heat with Dir. (A) Dr. Gottumukkala & team to climb up to the Liberty Bell🔔& Live History in the Front Row!💃@CISAgov helps secure highly symbolic infrastructure through assessments & trainings to safeguard our beautiful nation! 🇺🇸 #AmericaFirst
Tweet media one
0
1
6
@CISAMarci
Marci McCarthy
14 days
.@CISA’s future is focused on cybersecurity, infrastructure resilience, and national protection. As I shared with @Forbes, we’ve got one mission: defend what matters. 🇺🇸 #MissionFirst #AmericaFirst.
@Forbes
Forbes
14 days
U.S. And Israel Should Prepare For Destructive Iranian Cyberattacks, Ex-Intel Officer Says
Tweet media one
0
6
10
@CISAMarci
Marci McCarthy
14 days
Our nationwide collaborations help strengthen our resilience & safeguard public health.🏥In my native state of MA🦞@CISAgov conducted a cybersecurity tabletop exercise with @MassDPH to better safeguard public & private health care systems. Together, we're unstoppable! 💪🌟 #MASA.
@CISAgov
Cybersecurity and Infrastructure Security Agency
14 days
We recently participated in a Cybersecurity Tabletop Exercise with @MassDPH where we provided a critical cybersecurity brief to 60 state & local healthcare partners. Collaboration across the Healthcare & Public Health Sector is crucial for our nation’s resilience.
Tweet media one
0
14
25
@CISAMarci
Marci McCarthy
16 days
RT @DeptofDefense: LIVE: @SECDEF Pete Hegseth and CJCS Gen. Dan Caine hold an on-camera press briefing at the Pentagon, June 22, 2025. http….
0
1K
0
@CISAMarci
Marci McCarthy
16 days
RT @Sec_Noem: We will work unceasingly to protect the American homeland. Thank you President @realDonaldTrump. In God We Trust.
0
5K
0
@CISAMarci
Marci McCarthy
16 days
Tweet media one
0
119K
0
@CISAMarci
Marci McCarthy
16 days
RT @WhiteHouse: President Donald J. Trump Delivers Address to the Nation, June 21, 2025
0
7K
0
@CISAMarci
Marci McCarthy
17 days
🐶☀️ The Dog Days of Summer are here—but cyber threats don’t take time off. Stay cool. 😎 Stay secure. 🛡️Learn more at @CISAgov’s Secure Our World:
Tweet media one
2
3
6
@CISAMarci
Marci McCarthy
18 days
JAWS turns 50 today 🦈 A film that made us all think twice before going in the water… 🌊 In cyber, the threat is just as real—and just as silent. At @CISAgov, we’re on watch 24/7 so the sharks don’t win. Cyber hygiene isn’t a movie. It’s mission critical. #JAWS50
Tweet media one
0
3
6
@CISAMarci
Marci McCarthy
18 days
RT @FirstLadyOffice: New American Flag gracing the South Lawn of the @WhiteHouse - June 18th, 2025
0
3K
0
@CISAMarci
Marci McCarthy
20 days
🔒Small businesses are the backbone of our economy & cybersecurity is crucial to protect them! Secure software from the start to prevent adversaries from exploiting vulnerabilities. #SmallBiz #MarciMeansBiz.
@CISAgov
Cybersecurity and Infrastructure Security Agency
20 days
Adversaries are exploiting vulnerabilities in the software that powers essential services like water, transportation, healthcare & communications. These risks can be prevented by securing software from the start. See more:
Tweet media one
4
15
32