ddos
Operation PowerOFF identifies 75k DDoS users, takes down 53 domains
More than 75,000 individuals using distributed denial-of-service (DDoS) platforms for disruptive attacks have been warned through emails and letters during the latest phase of the Operation PowerOFF international law enforcement action. The ongoing operation is supported by Europol and involves authorities in 21 countries. Coordinated efforts led to the arrest of four people, taking offline […]
International joint action disrupts world’s largest DDoS botnets
Authorities from the United States, Germany, and Canada have taken down Command and Control (C2) infrastructure used by the Aisuru, KimWolf, JackSkid, and Mossad botnets to infect Internet of Things (IoT) devices. The joint law enforcement action also targeted virtual servers, internet domains, and other infrastructure used by the four botnets to launch hundreds of […]
Spain arrests suspected hacktivists for DDoSing govt sites
Spanish authorities have arrested four alleged members of a hacktivist group believed to have carried out cyberattacks targeting government ministries, political parties, and various public institutions. The group, which called itself “Anonymous Fénix” and claimed they were affiliated with the Anonymous hacker collective, conducted distributed denial-of-service (DDoS) attacks against targets in Spain and several South […]
Aisuru botnet sets new record with 31.4 Tbps DDoS attack
The Aisuru/Kimwolf botnet launched a new massive distributed denial of service (DDoS) attack that peaked at 31.4 Tbps and 200 million requests per second, setting a new record. The attack was part of a campaign targeting multiple companies, most of them in the telecommunications sector, and was detected and mitigated by Cloudflare last year on December 19. […]
UK govt. warns about ongoing Russian hacktivist group attacks
The U.K. government is warning of continued malicious activity from Russian-aligned hacktivist groups targeting critical infrastructure and local government organizations in the country in disruptive denial-of-service (DDoS) attacks. The attacks are aimed at taking websites offline and disabling services, the UK’s National Cyber Security Centre (NCSC) says in an alert today. Despite lacking sophistication, a DDoS attack […]
The biggest cyber security and cyberattack stories of 2025
2025 was a big year for cyber security, with major cyberattacks, data breaches, threat groups reaching new notoriety levels, and, of course, zero-day vulnerabilities exploited in incidents. Some stories, though, were more impactful or popular with our readers than others. Below are fifteen of what GeekFeed believes are the most impactful cyber security topics of […]
Aisuru botnet behind new record-breaking 29.7 Tbps DDoS attack
In just three months, the massive Aisuru botnet launched more than 1,300 distributed denial-of-service attacks, one of them setting a new record with a peak at 29.7 terabits per second. Aisuru is a huge botnet-for-hire service that provides an army of routers and IoT devices compromised via known vulnerabilities or through brute-forcing weak credentials. Internet management and infrastructure […]
Microsoft: Azure hit by 15 Tbps DDoS attack using 500,000 IP addresses
Microsoft said today that the Aisuru botnet hit its Azure network with a 15.72 terabits per second (Tbps) DDoS attack, launched from over 500,000 IP addresses. The attack used extremely high-rate UDP floods that targeted a specific public IP address in Australia, reaching nearly 3.64 billion packets per second (bpps). “The attack originated from Aisuru […]
Hacktivists target critical infrastructure, hit decoy plant
A pro-Russian hacktivist group called TwoNet pivoted in less than a year from launching distributed denial-of-service (DDoS) attacks to targeting critical infrastructure. Recently, the threat actor claimed an attack on a water treatment facility that turned out to be a realistic honeypot system set up by threat researchers specifically to observe adversaries’ movements. The compromise […]
Cloudflare mitigates new record-breaking 22.2 Tbps DDoS attack
Cloudflare has mitigated a distributed denial-of-service (DDoS) attack that peaked at a record-breaking 22.2 terabits per second (Tbps) and 10.6 billion packets per second (Bpps). DDoS attacks typically exhaust either system or network resources, aiming to make services slow or unavailable to legitimate users. Record-breaking DDoS attacks are becoming more frequent, as just three weeks ago, […]