What are DDoS attacks? DDoS (Distributed Denial of Service) is an attempt to exhaust the resources available to a network, application, or service so that genuine users cannot gain access. These attacks are designed to basically take down a network, at least temporarily, making it difficult if not impossible for the network to function as it was designed to do. Hackers will launch DDoS attacks for a number of reasons including: To extort money To damage the brand and reputation of a business To disrupt business services for customers Learn More: Secure Voice Communications Cloud PBX