What does denial-of-service attack actually mean? Find out inside PCMag's comprehensive tech and computer-related encyclopedia.

A DDoS attack is a flood of internet traffic from many different machines. It targets a single device, service, or network ...

There’s bad news and good news about “denial-of-service” attacks on business websites. The bad news: The types of hackers whose exploits slowed or shut down some of the Internet’s largest ...

But Cloudflare says it recently blocked a monumental DDoS attack which attempted to dump almost 38TB worth of data in just 45 seconds - making it the largest such attack in history. For comparison, ...

A large-scale distributed denial of service attack (DDoS) against New Hampshire-based Internet performance company Dyn caused major Internet disruptions Friday. Users were unable to access many ...

Distributed-denial-of-service (DDoS) attacks have become the scourge of the internet. DDoS attacks use compromised internet devices to generate enormous volumes of data and direct that data at a ...

SEATTLE – A distributed denial-of-service, or DDos, attack has long been a way to make a political statement or commit extortion against the owners and operators of a public-facing website.

When a widespread technology facilitates a denial of service attack affecting a large number of people, and the technology is deployed mainly by a few players with deep pockets, the right way to ...

Alternately, a denial-of-service attack could have been targeting both high-profile companies. Facebook responded later in the morning on Thursday with a statement.

At least in part, the offensive used the same attack tool and user credentials that were involved in the denial-of-service (DoS) attack on Krebs On Security, as Krebs himself revealed in a blog post.

The denial-of-service attack that left Twitter inaccessible for several hours on Thursday morning is just the latest in a string of problems for the rising star of social media. As the service ...