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.
We saw the Maze ransomware developers reemerge briefly this week as they shared the master decryption keys for the Egregor, Maze, and Sekhmet ransomware operations. [...]
The master decryption keys for the Maze, Egregor, and Sekhmet ransomware operations were released last night on the BleepingComputer forums by the alleged malware developer. [...]
Sebastien Vachon-Desjardins, a Canadian man charged by the US for his involvement in NetWalker ransomware attacks, was sentenced to 6 years and 8 months in prison after pleading guilty before an Ontario judge to multiple offenses linked to attacks on 17 Canadian victims. [...]
Sportswear manufacturer Puma was hit by a data breach following the ransomware attack that hit Kronos, one of its North American workforce management service providers, in December 2021. [...]
Czech cybersecurity software firm Avast has released a decryption utility to help TargetCompany ransomware victims recover their files for free. [...]
The numerous law enforcement operations leading to the arrests and takedown of ransomware operations in 2021 have forced threat actors to narrow their targeting scope and maximize the efficiency of their operations. [...]