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.
Ransomware gangs continue to pummel the enterprise, with attacks causing disruption in business operations and resulting in data breaches if a ransom is not paid. [...]
Kwik Trip has been impacted by a wide range of mysterious business disruptions since this weekend that are indicative of a ransomware attack. [...]
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has unveiled additional details regarding misconfigurations and security vulnerabilities exploited by ransomware gangs, aiming to help critical infrastructure organizations thwart their attacks. [...]
The U.S. government has updated the list of tools AvosLocker ransomware affiliates use in attacks to include open-source utilities along with custom PowerShell, and batch scripts. [...]
Internet-exposed WS_FTP servers unpatched against a maximum severity vulnerability are now targeted in ransomware attacks. [...]
The ALPHV (BlackCat) ransomware gang has claimed an attack that affected state courts across Northwest Florida (part of the First Judicial Circuit) last week. [...]
A threat actor has leaked the complete source code for the first version of the HelloKitty ransomware on a Russian-speaking hacking forum, claiming to be developing a new, more powerful encryptor. [...]