Ransomware encrypts or steals data to disrupt operations and extort victims, making backups, access controls, and incident response essential.
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Background for this topic.
Ransomware is malware used to deny access to systems or data, usually by encrypting files and demanding payment for decryption. Many operations also steal sensitive information and threaten to publish it, so an attack can create both an availability crisis and a privacy or disclosure risk. Initial access may involve phishing, stolen credentials, exposed remote services, or exploitation of unpatched vulnerabilities; attackers may then move through the network before deploying the payload.
Defenses should combine vulnerability management, phishing-resistant authentication where practical, endpoint and network monitoring, and backups that are isolated from routine administrator access and regularly tested for recovery. Organizations should also limit privileges and segment critical systems to reduce the blast radius. An incident requires rapid containment, preservation of forensic evidence, restoration from known-good backups, and assessment of notification, legal, and regulatory obligations. Threat intelligence can help identify relevant criminal infrastructure or tactics, but it does not replace sound access control, patching, detection, and recovery practices.
Why Cybersecurity Is a Public ImperativeData is one of the most valuable assets in today's digital age. Cyberthreats come in many forms, such as phishing attacks, ransomware, data breaches and malware infections, and failing to protect your data can cause severe financial, reputational and operational damage.
Hacktivists Are Likely to Increasingly Adopt Cybercrime Tactics, Report SaysRansomware hacks and self-declared hacktivist denial-of-services attacks were the most prolific threat to European Union members over the 12-month period ending in June, the EU cyber agency warned, adding that the nexus between nation-state hackers and hacktivist groups poses an emerging threat.
CyberEdBoard Members and ISMG Editors on Incident Response, AI and Defense TrendsThis week, CyberEdBoard members Jon Staniforth and Helmut Spöcker joined ISMG editors to unpack the hot topics at ISMG's London Cybersecurity Summit 2024, including ransomware lessons learned, AI trends and the growing importance of continuous learning and resilience in the cybersecurity industry.
Former Royal Mail and Manchester University CISOs Talk Ransomware ResponseTimely notification of ransomware incidents to British law enforcement agencies played a crucial role in understanding the threats and in developing mitigation strategies, the former security heads of Royal Mail and the University of Manchester said.
Preparing healthcare organizations to respond to and rebound from a disruptive ransomware attack is akin to implementing a "12-step program," said Dr. Eric Liederman, CEO of consultancy CyberSolutionsMD and recently retired long-serving director of medical informatics at Kaiser Permanente.