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  • Home Page | CISA
    Cybersecurity and Infrastructure Security Agency: America's Cyber Defense Agency
  • About CISA | CISA
    “The blue outer ring and the inner red ring indicate CISA’s unity with DHS and a nod to our efforts to cut through government red tape, while the three blue lines in the outer ring represent the Agency’s three congressionally mandated missions: cybersecurity, infrastructure security, and emergency communications The eagle faces to the right, signifying CISA’s keen eye on the future
  • CISA Regions | CISA
    About CISA Regions Across the nation, the Cybersecurity and Infrastructure Security Agency (CISA) offers a range of cyber and physical services to support the security and resilience of critical infrastructure owners and operators and state, local, tribal, and territorial partners Our experts collaborate with critical infrastructure partners and communities at the regional, state, county
  • Vulnerability Summary for the Week of November 24, 2025 - CISA
    The CISA Vulnerability Bulletin provides a summary of new vulnerabilities that have been recorded in the past week In some cases, the vulnerabilities in the bulletin may not yet have assigned CVSS scores Vulnerabilities are based on the Common Vulnerabilities and Exposures
  • CISA Central | CISA
    CISA Central is the simplest way for critical infrastructure partners and stakeholders to engage with CISA, request assistance, and get the information they need to understand the constantly evolving risk landscape CISA works closely with public sector, private sector, and international partners, offering technical assistance, information security, and education to protect our nation’s
  • Cyber Security Evaluation Tool (CSET) - CISA
    Cyber Security Evaluation Tool (CSET) is a free open-source tool that enables organizations to assess their cybersecurity posture
  • Use Strong Passwords - CISA
    Use a Password Manager For most people, generating and remembering long, random and unique passwords for every account is not possible Rather than write them down, use a password manager! A password manager is an easy-to-use program that generates, stores and even fills in all your passwords Password managers tell us when we have weak or re-used passwords and can generate strong passwords
  • CISA Adds One Known Exploited Vulnerability to Catalog
    CISA has added one new vulnerability to its Known Exploited Vulnerabilities Catalog, based on evidence of active exploitation CVE-2024-40711
  • Microsoft Releases Guidance on High-Severity Vulnerability (CVE-2025 . . .
    CISA is aware of the newly disclosed high-severity vulnerability, CVE-2025-53786, that allows a cyber threat actor with administrative access to an on-premise Microsoft Exchange server to escalate privileges by exploiting vulnerable hybrid-joined configurations This vulnerability, if not addressed, could impact the identity integrity of an organization’s Exchange Online service
  • Cybersecurity Division | Cybersecurity and Infrastructure Security . . .
    Further advance provision of centralized cybersecurity capabilities where appropriate and expand availability of risk-reducing shared services to non-federal partners





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