An attempt by a malicious (or unwitting) user, process, or system to prevent legitimate users from accessing a resource (usually a network service) by exploiting a weakness or design limitation in an information system. Examples of DoS attacks include flooding network connections, filling disk storage, disabling ports, or removing power. According ...

Denial of Services (DoS) attacks aimed at disrupting network services range from simple bandwidth exhaustion attacks and those targeted at flaws in commercial software to complex distributed attacks exploiting specific COTS software flaws. These types of attack are not new and have been used to devastating effect to prevent normal ...