A cybercrime forum seller advertised "a full dump of the popular DDoS-Guard online service" for sale, but the distributed denial-of-service defense provider, which has a history of defending notorious sites, has dismissed any claim it's been breached. What's the potential risk to its users?
Threat intelligence researchers are looking closely at REvil, the ransomware gang that infected up to 1,500 companies in a single swoop. A look at the group's online infrastructure shows clear lines to Russian and U.K. service providers that, in theory, could help law enforcement agencies but don't appear eager to...
As ransomware attacks become more prolific, their success is being driven by the increasing use of specialists who can refine every stage of an attack. It's a reminder that the goal of cybercrime remains to maximize illicit profits as easily and quickly as possible.
The code used to build copies of Babuk ransomware - to infect victims with the crypto-locking malware - has been leaked, after someone posted the software to virus-scanning service VirusTotal. Whether the leak was intentional - perhaps a rival gang seeking to burn the operation - remains unclear.
The daily peak of DDoS attack traffic increased 100% from January 2020 to May 2021, reaching 3 Tbps, with most of the high-bandwidth, high-intensity attacks originating from fewer than 50 hosting companies, Nokia Deepfield reports.
The global law enforcement "Anom" honeypot operation racked up impressive statistics for the number of criminals tricked into using the encrypted communications service. Psychology was at play: Officials say users flocked to the service after they disrupted rivals EncroChat and Sky Global.
Bitcoin has enabled fast payments to cybercriminals pushing ransomware. How to deal with bitcoin is the subject of a spirited debate, with some arguing to restrict it. But bitcoin doesn't always favor cybercriminals, and it may actually be more of an ally than a foe by revealing webs of criminality.
Based on Russian-language cybercrime chatter, "fear" likely drove the lucrative Avaddon ransomware-as-a-service operation to announce its retirement as the U.S. exerts increasing diplomatic pressure on Moscow to disrupt such activity, experts say. But are criminals simply laying low until the heat dies down?
Traditional ransomware attacks may have taken over the news, but Proofpoint researchers say the malicious actors who presents themselves as the North Korean-backed Lazarus advanced persistent threat group have revamped their distributed denial-of-service ransom extortion strategy and rebranded.
Security researchers have uncovered a flaw dubbed TsuNAME in DNS resolver software that attackers could used to carry out distributed denial-of-service attacks against authoritative DNS servers. Google and Cisco have resolved the issue in their DNS servers.
Forescout Research Labs and the Israeli security firm JSOF have found nine Domain Name System vulnerabilities affecting four TCP/IP stacks that, if exploited, could lead to remote code execution or denial-of-service attacks - potentially on millions of devices.
Anyone wanting to invent a system designed to stoke widespread abuse by fraudsters would be hard-pressed to best the non-fungible token. Because they get bought and sold using cryptocurrency, it's only a question of when scammers will turn their attention to defrauding NFT aficionados.
Security practitioners often tread a fine and not entirely well-defined legal line in collecting current and meaningful research. This research can also pose ethical questions when commercial sources for stolen data fall into a gray area.
The zero-day attacks against Accellion's File Transfer Appliance show that a number of big-name firms continued to use the legacy technology - even though more secure, cloud-based options were available. Evidently, many CISOs didn't see a compelling reason to move on. Of course, now they do.
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