National Security Agency/Central Security Service official account, home to America's codemakers and codebreakers. Likes, retweets, and follows ≠ endorsement.

Fort Meade, MD
Joined December 2013
NSA/CSS retweeted
PHP security risks remain high and PHP mitigation requires immediate attention. Our guidance is further supported by additional agencies including @CISACyber, @NCSC, @ASDGovAu, and CERT-EU. If you have not reviewed your exposure and applied mitigations, now is the time. Please read the linked resources, follow requisite vendor guidance, assess your environment, and implement mitigations without delay. nsa.gov/Press-Room/Press-Rel…
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Cisco Systems are used worldwide within infrastructure networks and include various password protection types. Brush up on Cisco password best practices to learn which types to use and avoid to better secure NSS and DIB networks against malicious actors. media.defense.gov/2022/Feb/1… #CybersecurityAwarenessMonth
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NSA/CSS retweeted
UPDATE: Specific mitigation guidance for the recently identified PHP critical vulnerabilities is now available. Secure your servers today. Guidance and technical steps here: nsa.gov/Press-Room/Press-Rel…
Effective Immediately, all organizations using PHP for their systems are advised to be prepared for an update addressing two critical vulnerabilities. PHP is widely used for web applications. These vulnerabilities often provide a direct path to the server's file system or database. If an immediate update is not feasible, it is recommend that organizations take the system offline until it can be fully mitigated. NSA will follow up shortly with more specific guidance.
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NSA/CSS retweeted
Effective Immediately, all organizations using PHP for their systems are advised to be prepared for an update addressing two critical vulnerabilities. PHP is widely used for web applications. These vulnerabilities often provide a direct path to the server's file system or database. If an immediate update is not feasible, it is recommend that organizations take the system offline until it can be fully mitigated. NSA will follow up shortly with more specific guidance.
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We recommend Cisco users disable the Smart Install (SMI) auto-loading feature on all NSS and DIB network devices to mitigate exploitation by remote attackers. Have you taken this action? Read more: media.defense.gov/2019/Jul/1… #CybersecurityAwarenessMonth
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Stop Russian compromise of your network devices by hardening your SNMP. We urge NSS and DIB admins to move to SNMPv3 immediately to ensure payloads are authenticated and encrypted. Full hardening guidance here: nsa.gov/Cybersecurity/Cybers…
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Closing our "25 Years Decoded: NSA & 9/11" series: NSA Deputy Director Tim Kosiba recounts working in a forensic lab on 9/11, the instant shift to protecting families, the rise of Tailored Access Operations (TAO), and his pledge to keep “never again” alive. Learn more. #25YearsDecoded #NSAstories #WeWillNeverForget
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A penultimate look at the series: Penny, a current volunteer historian for NSA’s Center for Cryptologic History (CCH) and former senior executive, shares the instant shift in priorities that turned the morning of terror into a call to action for the NSA. Tune in to hear her experience before the final episode. #25YearsDecoded #NSAstories #WeWillNeverForget
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Building on the insights from Dr. Adrian Stanger, NSA’s Senior Cryptographic Authority, at the Billington Cybersecurity Conference, we're highlighting the urgent need for quantum-resistant algorithms to secure the nation’s digital future. Check out the Post-Quantum Cryptography (PQC) Resource Hub: nsa.gov/cybersecurity/post-q…
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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…
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Contribution and impact: In our "25 Years Decoded: NSA & 9/11" series, Avi shares his story of contributing to the response. Learn more. #25YearsDecoded #NSAstories #WeWillNeverForget
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Preparedness and remembrance: In our "25 Years Decoded: NSA & 9/11" series, David reminds us to be prepared for future challenges by also remembering the past. Learn more. #25YearsDecoded #NSAstories #WeWillNeverForget
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NSA/CSS retweeted
Integrity Tech has enabled Chinese government-linked threat actors to exploit organizations’ networks globally and exfiltrate critical data. We’ve joined @FBICyberDiv and others to arm organizations with guidance to proactively defend their networks from this threat. nsa.gov/Press-Room/Press-Rel…
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NSA/CSS retweeted
NSA recommends implementing #ZeroTrust mitigation principles to enhance security of legacy #OperationalTechnology and prevent catastrophic impacts to U.S. national security, economic security, and public health and safety. Learn more: media.defense.gov/2026/Oct/0…
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Highlighting teamwork: Continuing our "25 Years Decoded: NSA & 9/11" series, Farid discusses the importance of teamwork and constant vigilance. Listen to his insights. #25YearsDecoded #NSAstories #WeWillNeverForget
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Discover resilience and unity: In our "25 Years Decoded: NSA & 9/11" series, Susan shares her experience of resilience and unity at the NSA during times of crisis. Hear her story. #25YearsDecoded #NSAstories #WeWillNeverForget
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Explore a pivotal moment in history: An NSA analyst reflects on the unity and rapid evolution of our capabilities post-9/11. Listen to their story. #25YearsDecoded #NSAstories #WeWillNeverForget
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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…
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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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We remember the profound impact of 9/11 on our nation. As we reflect, follow our "25 Years Decoded: NSA & 9/11” series exploring how this event affected the NSA and our mission. First up: NSA/CSS Deputy Chaplain Luther Alexander shares his experiences. Listen in. #25YearsDecoded #NSAStories #WeWillNeverForget
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