Clop is a ransomware family covered through reported incidents, technical analysis, disruption efforts, and defensive guidance for organizations.
Search across headline titles and summaries.
Background for this topic.
Clop is a ransomware family used by a criminal group that encrypts files on compromised systems and demands cryptocurrency payments for decryption keys. It is known for combining file encryption with data theft, threatening to publicly release stolen information if victims do not pay. Clop operators often exploit unpatched software vulnerabilities and exposed remote access services to gain entry, then move laterally within networks to maximize impact.
Defending against Clop requires timely patching of software and network devices, strict access controls, and segmentation to limit attacker movement. Monitoring for unusual data transfers can help detect exfiltration attempts linked to Clop’s double extortion tactics. Multi-factor authentication and user training reduce risks from credential theft and phishing, common initial vectors for this ransomware. Understanding Clop’s methods supports targeted detection and containment strategies in enterprise environments.
Weekly headline count for the current query.
The Clop ransomware group claimed responsibility for stealing the university's data as part of a broader campaign against Oracle customers.
The infamous Clop gang has targeted a wide range of Oracle E-Business Suite customers using a newly disclosed zero-day vulnerability.
Flashpoint published its 2025 mid-year ransomware report that highlighted the top five most prolific groups currently in operation.
The Clop ransomware group is actively exploiting a SysAid zero-day flaw after running rampant through enterprise systems using MOVEit file transfer bug.
In the wake of Cl0p's MOVEit rampage, Progress Software is sending file-transfer customers scrambling again — this time to patch a critical bug that is easily exploitable with a specially crafted HTTPS POST request.
State's Department of Health Care Policy & Financing is the latest to acknowledge an attack by the Russian group's ongoing exploitation of third-party systems.
Threat actors such as the operators of the Cl0p ransomware family increasingly exploit unknown and day-one vulnerabilities in their attacks.
Cl0p stands to make $100M on the MOVEit campaign, and according to a just-released survey, more than half of businesses are willing to pass data breach costs onto customers.
The cosmetics conglomerate was apparently breached through the infamous MOVEit flaw by both Cl0p and BlackCat, at roughly the same time.
Users need to patch the latest SQL injection vulnerability as soon as possible. Meanwhile, Cl0p's data extortion rampage gallops on.
In another MOVEit attack, oil and gas giant Shell saw the release of the private information of its employees.
Cl0p ransomware group uses its Dark Web leak site to identify five new victims of MOVEit cyberattacks.
Companies targeted by hacking groups with Cl0p ransomware typically have several chances to catch the attack prior to the payload being deployed, experts say.
The announcement was posted on Twitter via the Rewards for Justice Twitter account, alongside encrypted messaging system options for anyone to get into contact should they have viable information.
Gen Digital, the parent company of the security companies, is the latest victim in a rash of Cl0p attacks on the bug in the MOVEit transfer software, leading to employee data being revealed.
MOVEit has created a patch to fix the issue and urges customers to take action to protect their environments, as Cl0p attacks on the service continue to mount.
Progress has issued a second patch for additional SQL flaws that are distinct from the zero-day that Cl0p ransomware gang is exploiting.
Over that time, the group carried multiple tests to see if the exploit worked and to identify potential victims. It was like "turning the doorknob" to check for access, a researcher says.
A researcher guides Dark Reading through the most important bits of Cl0p's latest exploit.
Experts and researchers warn individuals and organizations that the cybercrime group is not to be trusted in their demands.