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NSA Cyber

@NSACyber

We protect our nation’s most sensitive systems against cyber threats. Likes, retweets, and follows ≠ endorsement.

nsa.gov/Cybersecurity/
Joined November 2019
  • Tweets518
  • Following12
  • Followers215K
266Media
Photo by NSA Cyber (@NSACyber)Photo by NSA Cyber (@NSACyber)Photo by NSA Cyber (@NSACyber)Photo by NSA Cyber (@NSACyber)Photo by NSA Cyber (@NSACyber)Photo by NSA Cyber (@NSACyber)Photo by NSA Cyber (@NSACyber)Photo by NSA Cyber (@NSACyber)Photo by NSA Cyber (@NSACyber)Photo by NSA Cyber (@NSACyber)
NSA Cyber retweeted
CISA Cyber (@CISACyber) profile picture
CISA Cyber
@CISACyberOct 21
🚨 Organizations should immediately patch critical PHP vulnerabilities CVE-2026-109618 and CVE-2026-109619. These vulnerabilities enable unauthenticated #RCE and affect PHP installations serving web requests. Learn more: 🔗 go.dhs.gov/5Hi
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NSA Cyber retweeted
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NSA/CSS
@NSAGovOct 13
Email servers remain a top target for adversaries. From Russian state-sponsored phishing to exploitation of unpatched or misconfigured software, the threats are real. For #CybersecurityAwarenessMonth, we’re sharing critical remediations to protect NSS and DIB networks. Secure your servers: nsa.gov/Cybersecurity/Cybers…
A digital graphic shows a laptop with a glowing envelope being hooked. The National Security Agency logo is in the upper left corner. The text reads, "Securing your email is a fundamental step in protecting your organization's data.

ALT A digital graphic shows a laptop with a glowing envelope being hooked. The National Security Agency logo is in the upper left corner. The text reads, "Securing your email is a fundamental step in protecting your organization's data.

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NSA Cyber retweeted
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NSA/CSS
@NSAGovOct 1
NSA is taking proactive steps to protect national security systems from quantum computing threats. Key initiatives include the launch of the Post-Quantum Cryptography Resources Hub, collaboration on standards and guidelines, raising awareness and education, and partnering with industry and academia. Learn more: nsa.gov/cybersecurity/post-q…
The image features a stylized design with the text "Post-Quantum Cryptography Resource Hub" and "Now Live" on a dark background. A logo resembling the letters "PQC" is on the left, and the NSA seal is in the lower right corner.

ALT The image features a stylized design with the text "Post-Quantum Cryptography Resource Hub" and "Now Live" on a dark background. A logo resembling the letters "PQC" is on the left, and the NSA seal is in the lower right corner.

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NSA Cyber retweeted
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NSA/CSS
@NSAGovOct 1
October is Cybersecurity Awareness Month! Throughout the month, we'll be sharing guidance to help you stay ahead of digital threats and keep your data safe. Visit our site for guidance and more: nsa.gov/cybersecurity-awaren…
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NSA Cyber retweeted
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NSA/CSS
@NSAGovSep 10
"The basics are no longer boring, and AI can’t outrun the basics.” Across two #BillingtonSummit panels, @NSACyber Director David Imbordino joined government, industry, and FVEY cyber leaders to discuss nation-state threats, AI, and strengthening collective cyber defense.
NSA Cybersecurity Director David Imbordino speaks during a panel at the 2026 Billington Cybersecurity Summit.

ALT NSA Cybersecurity Director David Imbordino speaks during a panel at the 2026 Billington Cybersecurity Summit.

NSA Cybersecurity Director David Imbordino speaks during a panel at the 2026 Billington Cybersecurity Summit.

ALT NSA Cybersecurity Director David Imbordino speaks during a panel at the 2026 Billington Cybersecurity Summit.

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NSA Cyber retweeted
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NSA/CSS
@NSAGovJun 4
A strong finish to #TechNetCyber. Daniel McCormack, Chief Operations Officer of NSA’s Cybersecurity Directorate, shared insights on the evolving cyber landscape, innovation, and the partnerships that help strengthen our collective defense. #CyberDefense
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NSA Cyber retweeted
CISA Cyber (@CISACyber) profile picture
CISA Cyber
@CISACyberJun 2
Malicious cyber threat actors are targeting internet-exposed ATG systems in the United States. Review our joint fact sheet for TTPs and recommendations to protect your systems. 👉 go.dhs.gov/5Sz
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Iran-affiliated cyber actors are targeting operational technology devices across US critical infrastructure, including programmable logic controllers (PLCs). These attacks have led to diminished PLC functionality, manipulation of display data and, in some cases, operational disruption and financial loss. The @FBI, @CISAGov, @NSAgov, @EPA, @ENERGY and @US_CYBERCOM are urging US organizations—especially municipalities and those in the water and energy sectors—to review the tactics, techniques, and procedures (TTPs) and indicators of compromise (IOCs) detailed in this advisory. Applying the recommended mitigations will reduce the risk of compromise: ic3.gov/CSA/2026/260407.pdf
Joint cybersecurity advisory warns of Iranian-affiliated hackers targeting programmable logic controllers in US critical infrastructure.

ALT Joint cybersecurity advisory warns of Iranian-affiliated hackers targeting programmable logic controllers in US critical infrastructure.

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Russian GRU cyber actors are exploiting vulnerable routers worldwide to intercept sensitive military, government, and critical infrastructure information. The @FBI, @NSAgov and 21 international parties across 15 countries have released a #PSA detailing GRU techniques and providing defensive guidance. We urge all network defenders and owners of small office/home office (SOHO) routers to update to the latest firmware versions, change default usernames and passwords, disable remote management interfaces from the internet, and stay alert for certificate warnings in web browsers and email clients. ic3.gov/PSA/2026/PSA260407
Public service announcement warning of Russian GRU exploiting vulnerable routers to steal sensitive data, dated April 7, 2026.

ALT Public service announcement warning of Russian GRU exploiting vulnerable routers to steal sensitive data, dated April 7, 2026.

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NSA Cyber retweeted
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NSA/CSS
@NSAGovApr 8
NSA supports @FBI PSA on Russian GRU cyber actors exploiting routers. Take action today to stay secure. To learn more and for best practices, read NSA’s press release. nsa.gov/Press-Room/Press-Rel… #Cybersecurity #NSA #NetworkDefense #RouterSecurity
NSA Supports FBI in Highlighting Russian GRU Threats Against Routers

NSA Supports FBI in Highlighting Russian GRU Threats Against Routers

FORT MEADE, Md. (April 7, 2026) — The National Security Agency (NSA) and other agencies today co-sealed a Federal Bureau of Investigation (FBI) public service announcement, “Russian GRU

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We urge orgs to monitor for potential cyber threats against U.S. #CriticalInfrastructure —routine targets for Iranian govt-affiliated actors. See our joint fact sheet for more info & mitigations. 👉 go.dhs.gov/wjJ
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CISA completed a #RedTeam Assessment with a #CriticalInfrastructure partner, simulating real-world cyber threats. The result? 👀 The red team was able to compromise the org’s domain due to insufficient controls. Read more for lessons learned & insights 👉 bit.ly/40ZIX7y
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NSA Cyber retweeted
NSA/CSS (@NSAGov) profile picture
NSA/CSS
@NSAGov5 Sep 2024
From government to the private sector to academia, partnerships are critical in cybersecurity. Join Dave Luber, @NSA_CSDirector, and LtGen Jerry Carter as they discuss all things cyber in the second episode of No Such Podcast, available now wherever you get your podcasts!
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NSA/CSS
@NSAGov9 May 2024
That’s a wrap on #RSAC 2024! We’ll see you next year!
A group of people stand behind a booth waving.

ALT A group of people stand behind a booth waving.

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NSA Cyber retweeted
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NSA/CSS
@NSAGov9 May 2024
There’s still time to stop by NSA’s booth 960 at #RSAC 2024! Come chat with us and learn about career opportunities – recruiters are standing by to answer your questions about what a career at NSA can look like.
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NSA/CSS
@NSAGov8 May 2024
“The area of most concern to me is where cyber meets physical.” @NSA_CSDirector Dave Luber shared his thoughts on the state of cybersecurity at #RSAC 2024.
Two men in dark suits are seated on a stage in front of a sign that reads RSAConference 2024. The man on the right smiles while gesturing to the audience.

ALT Two men in dark suits are seated on a stage in front of a sign that reads RSAConference 2024. The man on the right smiles while gesturing to the audience.

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NSA Cyber retweeted
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NSA/CSS
@NSAGov8 May 2024
Welcome to day three of #RSAC 2024! Our impressive line-up today kicks off with @NSA_CSDirector Dave Luber at 9:40am, followed by Michael Jenkins on a panel at 2:25pm. Close out the day with us at a pop-up booth event featuring Morgan Adamski and FBI Cyber DAD Cynthia Kaiser.
Image from NSA/CSS (@NSAGov)
Image from NSA/CSS (@NSAGov)
Image from NSA/CSS (@NSAGov)
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Museum Curator Deana Bowles is at #RSAC 2024 with several artifacts, including a German Enigma, an M-209 encryption device, and the Rainbow books – a collection of DoD computer security requirements from the 1980s. Stop by @NSAGov’s booth 960 and check them out!
A blonde woman smiles while standing next to a table with two encryption machines on it.

ALT A blonde woman smiles while standing next to a table with two encryption machines on it.

Four brightly colored books are displayed on a table in front of a sign that says, "Computer Security Requirements - Guidance for applying the Department of Defense trusted computer system evaluation criteria in specific environments"

ALT Four brightly colored books are displayed on a table in front of a sign that says, "Computer Security Requirements - Guidance for applying the Department of Defense trusted computer system evaluation criteria in specific environments"

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NSA Cyber retweeted
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NSA/CSS
@NSAGov7 May 2024
Calling all #RSAC 2024 attendees! NSA reps are standing by to answer your questions about our missions and career opportunities. Stop by booth 960 to learn more and check out our swag!
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NSA Cyber retweeted
NSA/CSS (@NSAGov) profile picture
NSA/CSS
@NSAGov7 May 2024
Morgan Adamski, Director of NSA's Cybersecurity Collaboration Center, spoke at #RSAC 2024 yesterday about Volt Typhoon and the importance of partnerships in defeating malicious cyber actors.
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