Distributed Denial-of-Service
“Rapper Bot” malware seized, alleged developer identified and charged
The U.S. Department of Justice (DoJ) announced charges against the alleged developer and administrator of the “Rapper Bot” DDoS-for-hire botnet. Ethan Foltz, 22, of Eugene, Oregon, allegedly rented the botnet to cybercriminals eho targeted various organizations. The botnet operation itself was seized as part of ‘Operation PowerOff ‘on August 6, during a raid at Foltz’s residence in Oregon. […]
Citrix warns of NetScaler vulnerability exploited in DoS attacks
Citrix is warning that a vulnerability in NetScaler appliances tracked as CVE-2025-6543 is being actively exploited in the wild, causing devices to enter a denial of service condition. “Exploits of CVE-2025-6543 on unmitigated appliances have been observed,” warns Citrix’s advisory. Tracked internally as CTX694788, CVE-2025-6543 is a critical flaw impacting NetScaler ADC and NetScaler Gateway and can […]
Cloudflare blocks record 7.3 Tbps DDoS attack against hosting provider
Cloudflare says it mitigated a record-breaking distributed denial of service (DDoS) attack in May 2025 that peaked at 7.3 Tbps, targeting a hosting provider. DDoS attacks flood targets with massive amounts of traffic with the sole aim to overwhelm servers and create service slowdowns, disruptions, or outages. This new attack, which is 12% larger than […]
Police takes down six DDoS-for-hire services, arrests admins
Polish authorities have detained four suspects linked to six DDoS-for-hire platforms, believed to have facilitated thousands of attacks targeting schools, government services, businesses, and gaming platforms worldwide since 2022. Such platforms are often marketed as legitimate testing tools on the dark web and hacking forums, but are mainly used to disrupt online services, servers, and websites by […]
Pro-Russia hacktivists bombard Dutch public orgs with DDoS attacks
Russia-aligned hacktivists persistently target key public and private organizations in the Netherlands with distributed denial of service (DDoS) attacks, causing access problems and service disruptions. The situation was acknowledged via a statement by the country’s National Cyber Security Center (NCSC), part of the Dutch Ministry of Justice. “This week, several Dutch organizations have been targeted […]
Cloudflare mitigates record number of DDoS attacks in 2025
Internet services giant Cloudflare says it mitigated a record number of DDoS attacks in 2024, recording a massive 358% year-over-year jump and a 198% quarter-over-quarter increase. These figures come from Cloudflare’s 2025 Q1 DDoS Report, where the company says it mitigated a total of 21.3 million DDoS attacks in 2024. However, 2025 is looking to be […]
X hit by ‘massive cyberattack’ amid Dark Storm’s DDoS claims
The Dark Storm hacktivist group claims to be behind DDoS attacks causing multiple X worldwide outages on Monday, leading the company to enable DDoS protections from Cloudflare. While X owner Elon Musk did not specifically state that DDoS attacks were behind the outages, he did confirm that it was caused by a “massive cyberattack.”. “There […]
New Eleven11bot botnet infects 86,000 devices for DDoS attacks
A new botnet malware named ‘Eleven11bot’ has infected over 86,000 IoT devices, primarily security cameras and network video recorders (NVRs), to conduct DDoS attacks. The botnet, which is loosely linked to Iran, has already launched distributed denial of service (DDoS) attacks targeting telecommunication service providers and online gaming servers. Eleven11bot was discovered by Nokia researchers […]
DDoS attacks reportedly behind DayZ and Arma network outages
An ongoing distributed denial of service (DDoS) attack targets Bohemia Interactive’s infrastructure, preventing players of DayZ and Arma Reforger from playing the games online. Bohemia Interactive is a Czech video game developer and publisher known for its popular Arma Series tactical shooters and DayZ, a standalone survival game from an Arma 2 mod. Starting last […]
New Aquabotv3 botnet malware targets Mitel command injection flaw
A new variant of the Mirai-based botnet malware Aquabot has been observed actively exploiting CVE-2024-41710, a command injection vulnerability in Mitel SIP phones. The activity was discovered by Akamai’s Security Intelligence and Response Team (SIRT), who reports that this is the third variant of Aquabot that falls under their radar. The malware family was introduced […]