Malware, Phishing, and Ransomware
Cyber-attacks can come in many forms. Malware, Phishing, and Ransomware are becoming increasingly common forms of attack and can affect individuals and large organizations. Malware is any software used to gain unauthorized access to IT systems in order to steal data, disrupt system services or damage IT networks in any way. Ransomware is a type of malware identified by specified data or systems being held captive by attackers until a form of payment or ransom is provided. Phishing is online scam enticing users to share private information using deceitful or misleading tactics. CISA offers a variety of tools and resources that individuals and organizations can use to protect themselves from all types of cyber-attacks.
CISA is constantly monitoring cyberspace for new forms of malware, phishing, and ransomware. We offer numerous tools, resources, and services to help identify and protect against cyber-attacks. CISA also collaborates with governments at all levels as well as internationally and private sector entities to share information and collaborate in securing our networks on national and global scales. Defending against cyber attacks requires coordination across many facets of our nation, and it is CISA’s mission to ensure we are armed against and prepared to respond to ever-evolving threats.
Designed to help public and private organizations defend against the rise in ransomware cases, StopRansomware is a whole-of-government approach that gives one central location for ransomware resources and alerts.
As the nation’s cyber defense agency, CISA stands ready to help organizations prepare for, respond to, and mitigate the impact of cyberattacks. When cyber incidents are reported quickly, we can render assistance and issue warnings to prevent attacks.
Cybersecurity Alerts & Advisories
CISA is continually monitoring cyber space and actively shares threats and vulnerabilities.
Discover the latest security tips and how CISA is protecting against Malware, Phishing, and Ransomware.
Handling Destructive Malware
CISA and FBI Update Advisory on Destructive Malware Targeting Organizations in Ukraine
Microsoft Warns of Destructive Malware Targeting Ukrainian Organizations
CISA offers a variety of cybersecurity services to help prevent, detect, and respond to malware, phishing, and ransomware attacks.
Phishing Vulnerability Scanning
Anti-Phishing Training Program Support
Resources, Tools, and Publications
CISA offers guides, tools, and other resources to prevent and mitigate against Malware, Phishing, and Ransomware attacks.
CISA-Multi-State Information Sharing and Analysis Center (MS-ISAC) Joint Ransomware Guide.
Risk in Focus: Ransomware
Risk in Focus: Phishing
Malware is malicious code (e.g., viruses, worms, bots) that disrupts service, steals sensitive information, gains access to private computer systems, etc. By reporting malware, you will help limit the scope of the potential attack and protect the nation's overall security.