Stay updated on DoS threats. Explore the latest news and insights on Denial of Service attacks, prevention tips, and cybersecurity strategies.
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Background for this topic.
Denial of service (DoS) is an attack that makes a system, network, or application unavailable by exhausting resources or triggering failure. Floods can consume bandwidth, connection state, CPU, memory, or request-processing capacity; a software defect may instead be exploited to crash a service. A distributed denial-of-service (DDoS) attack generates traffic from many systems, increasing volume and complicating source-based blocking. The material security impact is loss of availability for users and dependent services, including websites, APIs, DNS, and operational systems.
Mitigation should match the bottleneck. Rate limits, request validation, connection protections, caching, and service isolation can reduce application and state-exhaustion attacks; volumetric traffic generally needs filtering or absorption upstream of the network. Monitoring should distinguish abnormal request patterns from ordinary load and alert on saturation, while tested failover, traffic diversion, and restoration procedures limit outage duration. Vulnerability management and timely patching reduce DoS caused by remotely triggerable crashes, but do not replace capacity planning and resilience testing.
Weekly headline count for the current query.
The NetNut proxy network and the ‘Popa’ botnet are known to have infected devices with variants of Mirai DDoS botnets
Coordinated action by FBI, Europol and others seizes infrastructure, makes arrests – and sends warning letters to known DDoS service users
CrackArmor AppArmor flaws let local Linux users gain root, break containers and enable DoS attacks
DDoS attack frequency has risen to ‘alarming levels,’ warns Radware report
DDoS-ers are striking a website linked to a data breach at the Department of Homeland Security
French postal service warns of “major network incident” just before Christmas
A flaw in JumpCloud Remote Assist for Windows has exposed managed endpoints to local privilege escalation and denial-of-service attacks
ENISA report reveals DDoS accounted for 60% of public sector security incidents last year
New campaign merges traditional malware with DevOps tools, using GitHub CodeSpaces for DDoS attacks
A 22-year-old Oregon man has been charged with administering the Rapper Bot DDoS-for-hire Botnet
Cloudflare highlighted a huge rise in hyper-volumetric DDoS attacks in Q2 2025, with attackers seeking to overwhelm defenses
The financial sector was the industry most targeted by distributed denial-of-service (DDoS) attacks in 2024, with a peak in October
A prolific DDoS-for-hire network has been dismantled by Polish authorities as part of a coordinated international crackdown
Pro-Palestine Dark Storm Team group claims responsibility for major DDoS attacks on X
Pro-Russia hackers NoName057(16) has targeted Italian banks, airports and ports in a series of DDoS attacks
Gcore reported a 56% year-over-year rise in DDoS attacks in H2 2024, highlighting a steep long-term growth tend for the attack technique
Cloudflare warns of a surge in hyper-volumetric DDoS after revealing it stopped a massive 5.6Tbps attack
Docomo has revealed a DDoS attack on Thursday took down key services
Operation PowerOFF has dismantled a network of 27 DDoS platforms, leading to the arrests of three administrators and the identification of over 300 users
DDoS campaign by Matrix targets IoT devices and servers, exploiting weak credentials and public scripts