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What Is Ransomware? | IBM

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Welcome Overview Overview Overview Phishing Spear phishing Spear phishing versus standard phishing Smishing Business email compromise (BEC)Whale phishing (whaling)Pretexting Overview Ransomware Ransomware as a service (RaaS)Scareware History of malware Overview Threat actor Hacking Attack vector Adversarial machine learning Distributed denial of service (DDoS) attack Zero day exploit Man in the middle (MITM) attack Brute force attack Lateral movement Insider threats Advanced persistent threats Kerberoasting Cryptojacking Data poisoning Dark web Overview Data breach Data exfiltration PII (personally identifying information)Digital footprint Data protection Data security posture management Data discovery Database security Data privacy Data privacy examples XaaS data security Overview Symmetric encryption Asymmetric encryption Public key infrastructure Public key encryption Key management Bring your own key (BYOK)Cryptography Homomorphic encryption End-to-end encryption Cryptography types Cryptography use cases History of cryptography Transport layer security Confidential computing Tokenization Overview Nonhuman identity Machine identity management Identity security Identity fabric Identity orchestration Customer IAM (CIAM)Overview Authentication versus authorization Single sign-on (SSO)Two-factor authentication (2fA)Multi-factor authentication (MFA)Adaptive MFA Phishing-resistant MFA Biometric authentication Behavioral biometrics CAPTCHA FIDO FIDO2 Digital credentials Overview Access controls Privileged access management (PAM)User provisioning RBAC OAuth Overview Cloud security posture management (CSPM)Cloud workload protection platform (CWPP)Overview Mobile security Mobile workforce Bring your own device (BYOD)Mobile device management (MDM)MDM versus mobile application management (MAM)Enterprise mobility management (EMM)Unified endpoint management (UEM)UEM versus MDM Android device management Network security Information security IT security OT security Email security Web security Critical infrastructure Zero trust Secure access service edge (SASE)CIS benchmarks Overview Vulnerability management lifecycle Vulnerability scanning Vulnerability assessment CVE (Common vulnerabilities and exposures)CVSS (Common vulnerabilities scoring system)Patch management Security posture Attack surface Attack surface management Shadow IT Log4shell Log4J vulnerability Log4j vulnerability detection and patching SaaS sprawl Overview Application security posture management (ASPM)Dynamic application security testing (DAST)Overview Ethical hacking Red teaming Blue team Penetration testing Network penetration testing Phishing simulation Breach attack simulation Overview AI security AI fraud detection in banking Overview Incident response Digital forensics Computer forensics Digital forensics and incident response Fraud detection Security information and event management (SIEM)Security orchestration automation and response (SOAR)Endpoint detection and response (EDR)Network detection and response (NDR)Extended detection and response (XDR)Identity threat detection and response (ITDR)Data detection and response (DDR)Data loss prevention (DLP)Intrusion detection system (IDS)Intrusion prevention system (IPS)User behavior analytics (UBA)User and entity behavior analytics (UEBA)Distributed denial of service (DDoS) protection Next generation antivirus (NGAV)Overview Threat intelligence OSINT Threat hunting MITRE ATT&CK NIST Cyber resilience Cyber insurance Security controls Managed security service provider Security operations center (SOC)Managed detection and response (MDR)Cyber range Cybersecurity crisis communication Matthew Kosinski malware data backups cyberattacks IBM® X-Force® Threat Intelligence Index hackers IBM Cost of a Data Breach breach cybersecurity Scareware IBM Privacy Statement Social engineering phishing Zero-day vulnerabilities malware ransomware as a service (RaaS)Watch the latest podcast episode Definitive Guide to Ransomware X-Force Threat Intelligence Index Definitive Guide to Ransomware network monitoring endpoint detection and response (EDR)security information and event management (SIEM)multifactor authentication . Identity and access management Cost of a Data Breach incident response Definitive Guide to Ransomware Spotify Apple Podcasts Find more episodes Spotify Apple Podcasts Find more episodes Report 2026 Cyber Resilience Trends and Winning Strategies for Infrastructure Leaders Explore the key cyber resilience trends shaping 2026 and how infrastructure leaders are adapting to an era of AI-driven threats. Learn how intelligent storage, zero trust frameworks, and proactive strategies can help reduce downtime, strengthen protection, and ensure compliance—while turning resilience into a competitive advantage. Read the report Techsplainers podcast Cyberattacks explained Techsplainers by IBM breaks down the essentials of cyberattacks, from key concepts to real‑world use cases. Clear, quick episodes help you learn the fundamentals fast. Listen now On-demand webinars Guardium webinars Learn how to protect your data across its lifecycle from our webinars. Explore on-demand webinars Guide Cybersecurity in the era of generative AI Learn how today’s security landscape is changing and how to navigate the challenges and tap into the resilience of generative AI. Read the guide Explainer What is threat management? Threat management is a process of preventing cyberattacks, detecting threats and responding to security incidents. Read the article Explore FlashSystem Cyber Resilience Explore ransomware protection solutions Explore incident response services Explore FlashSystem Cyber Resilience Explore ransomware solutions New Ransomware Reporting Requirements Kick in as Victims Increasingly Avoid Paying Decryption tools

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