America's Cyber Defense Agency and National Coordinator for Critical Infrastructure Security & Resilience. Likes, reshares, follows ≠ endorsements.

Washington, DC
Joined February 2018
We’re recruiting! Join team CISA and be part of a workforce that tackles evolving risks and threats to the nation’s critical infrastructure. New positions are frequently being added to USAJobs. Don’t wait, apply now: usajobs.gov/Search/Results?a…
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October is Cybersecurity Awareness Month—a reminder that cybersecurity starts with all of us. Exercises like Cyber Storm highlight the importance of preparation, partnership, & practicing how we respond to evolving cyber threats. Read more on Cyber Storm: cisa.gov/resources-tools/ser…
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Missed our CISA Live! discussion on cybersecurity careers? Hear from CISA and NIST experts on career pathways, skills development, and resources to help you enter or advance in the cyber workforce. Watch the recording 👇 youtu.be/TwKmY8wu7cQ
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🚨 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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When digital systems fail, how do you preserve essential services? On Oct. 26, join us for a CISA Live! discussing the importance of prioritizing resilience and key actions for frontline defenders. 🔗 Tune in: linkedin.com/events/75180356…
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Check out our new joint guidance to help #CriticialInfrastructure organizations understand, manage, and reduce super intelligence token usage to support reliable and cost-effective operations. Read more: go.dhs.gov/5Hq
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Encrypt your data and devices to defend against attacks and keep sensitive information unreadable. Make encryption part of your security strategy: cisa.gov/cybersecurity-aware… #SecuringTheNext250
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Do you know how to respond to a bomb threat? CISA provides resources to enhance the nation’s ability to prevent, protect against, respond to, and mitigate the use of explosives. Learn more: cisa.gov/topics/physical-sec…
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On this this Global Encryption Day, we wouldn’t want to imagine a world without encryption. Strong end to end encryption helps keep our critical infrastructure safe. Learn more: go.dhs.gov/5rU #GlobalEncryptionDay #CybersecurityAwarenessMonth
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Cybersecurity and Infrastructure Security Agency retweeted
🚨 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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We’re live in an hour! Join CISA’s experts for ‘How to Build a Career in Cybersecurity’—ask your questions and learn how a cyber career can help you make an impact: linkedin.com/events/75143906…
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🇺🇸🤝🇦🇷 Strong partnerships build stronger cyber defenses. Acting Dir Nick Andersen met with @innovacionar's State Secretary for Science & Technology, Adriana Baravalle, to discuss cybersecurity cooperation and resilience. ¡Hacemos un gran equipo!
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Logging activity helps detect threats early and builds a baseline for the next 250 years of security. Preparedness means monitoring and responding quickly to potential incidents. Learn how to monitor key information: cisa.gov/cybersecurity-aware… #SecuringTheNext250
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We’ve released a new advisory w/ @FBI, @SecretService & partners to help orgs detect + defend against prolific SafePay ransomware activity targeting businesses & multiple #CriticalInfrastructure sectors worldwide. Learn how to protect your org today 👉 go.dhs.gov/5rL
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⏰ REMINDER! We’re hosting a CISA Live! tomorrow at 1 PM ET. Bring your questions for our experts and learn about skills, training, and career options in cybersecurity: linkedin.com/events/75143906…
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Cybersecurity and Infrastructure Security Agency retweeted
NSA joined @NIST and @CISACyber in releasing guidelines for managing SI control incidents. Organizations utilizing SI are encouraged to adopt these practices. Read the joint report: media.defense.gov/2026/Oct/1…
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All election offices should have procedures in place to handle mail safely and respond to potentially hazardous materials exposure. Get started with our guide and ensure employees are properly trained: go.dhs.gov/5ri
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Acting Dir Nick Andersen met with Lt. Gen. Michelle McGuinness, Australia’s National Cyber Security Coordinator, to discuss Cyber Storm X—CISA’s national level exercise that strengthens incident response & collective readiness. Learn more: go.dhs.gov/5zU
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Cyber disruptions don’t stop in IT systems; they affect power grids, water utilities & supply chains. Join us Oct. 26 for a #CISALive as we bridge Cybersecurity Awareness Month into Critical Infrastructure Security & Resilience Month. Register: linkedin.com/events/75180356…
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