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.
Taiwanese PC company MSI (short for Micro-Star International) officially confirmed it was the victim of a cyber attack on its systems
The Iranian nation-state group known as MuddyWater has been observed carrying out destructive attacks on hybrid environments under the guise of a ransomware operation
On Friday, U.S. Cybersecurity and Infrastructure Security Agency (CISA) increased by five its list of security issues that threat actors have used in attacks, three of them in Veritas Backup Exec exploited to deploy ransomware. [...]
The effort aims to disrupt the use of altered Cobalt Strike software by cybercriminals in ransomware and other attacks.
Following reports of a ransomware attack, Taiwanese PC vendor MSI (short for Micro-Star International) confirmed today that its network was breached in a cyberattack. [...]
Microsoft said it teamed up with Fortra and Health Information Sharing and Analysis Center (Health-ISAC) to tackle the abuse of Cobalt Strike by cybercriminals to distribute malware, including ransomware
The Medusa ransomware gang has claimed a cyberattack on the Open University of Cyprus (OUC), which caused severe disruptions of the organization's operations. [...]
Taiwanese PC parts maker MSI (Micro-Star International) has been listed on the extortion portal of a new ransomware gang known as "Money Message," which claims to have stolen source code from the company's network. [...]
Ransomware suspected as visa applications are hit
Every year hundreds of millions of malware attacks occur worldwide, and every year businesses deal with the impact of viruses, worms, keyloggers, and ransomware. Malware is a pernicious threat and the biggest driver for businesses to look for cybersecurity solutions. Naturally, businesses want to find products that will stop malware in its tracks, and so they search for solutions to do that.
The malware is one of the most sophisticated ransomwares ever seen in the wild, and marks a leap ahead for cybercrime.
The ransomware strain uses a signed component of the Palo Alto Cortex XDR Dump Service Tool
An ALPHV/BlackCat ransomware affiliate was observed exploiting three vulnerabilities impacting the Veritas Backup product for initial access to the target network. [...]
Following a cyberattack on a U.S.-based company, malware researchers discovered what appears to be a new ransomware strain with "technically unique features," which they named Rorschach. [...]
Cybersecurity researchers have taken the wraps off a previously undocumented ransomware strain called Rorschach that's both sophisticated and fast
Have you ever wondered how they design blue team exercises? One ransomware and cyber extortion simulation demonstrates the best practices.
A new ransomware gang named 'Money Message' has appeared, targeting victims worldwide and demanding million-dollar ransoms not to leak data and release a decryptor. [...]