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.
A ransomware operation targets Windows system administrators by taking out Google ads to promote fake download sites for Putty and WinSCP. [...]
This week was pretty quiet on the ransomware front, with most of the attention on the seizure of the BreachForums data theft forum. However, that does not mean there was nothing of interest released this week about ransomware. [...]
Electronic prescription provider MediSecure in Australia has shut down its website and phone lines following a ransomware attack believed to originate from a third-party vendor. [...]
Financially motivated cybercriminals abuse the Windows Quick Assist feature in social engineering attacks to deploy Black Basta ransomware payloads on victims' networks. [...]
The Singing River Health System is warning that it is now estimating that 895,204 people are impacted by a ransomware attack it suffered in August 2023. [...]
A cybercriminal using the name "salfetka" claims to be selling the source code of INC Ransom, a ransomware-as-a-service (RaaS) operation launched in August 2023. [...]
Since April, millions of phishing emails have been sent through the Phorpiex botnet to conduct a large-scale LockBit Black ransomware campaign. [...]