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.
Japanese beer-making giant Asahi has disclosed today that a ransomware attack caused the IT disruptions that forced it to shut down factories this week. [...]
Oracle has linked an ongoing extortion campaign claimed by the Clop ransomware gang to E-Business Suite (EBS) vulnerabilities that were patched in July 2025. [...]
A ransomware attack at Motility Software Solutions, a provider of dealer management software (DMS), has exposed the sensitive data of 766,000 customers. [...]
Google has begun rolling out a new AI-powered security feature for Google Drive desktop, which will automatically pause file syncing when it detects a ransomware attack to minimize impact. [...]
Threat actors claiming to represent the Medusa ransomware gang tempted a BBC correspondent to become an insider threat by offering a significant amount of money. [...]
Ongoing Akira ransomware attacks targeting SonicWall SSL VPN devices continue to evolve, with the threat actors found to be successfully authenticating despite OTP MFA being enabled on accounts. [...]