Teenusetõkestusrünnak

Teenusetõkestusrünnak, often abbreviated as DoS attack, is a type of cyberattack where malicious actors attempt to disrupt the normal traffic of a targeted server, service, or network by overwhelming the target or its surrounding infrastructure with a flood of internet traffic. The goal is to make the target resource unavailable to its intended users. This can be achieved through various methods, often involving sending an overwhelming amount of requests that the target system cannot process, thus consuming its resources such as bandwidth, processing power, or memory.

Denial-of-service attacks can originate from a single source, though distributed denial-of-service (DDoS) attacks, which use multiple compromised computer systems (often referred to as a botnet) to launch the attack, are more common and significantly more difficult to defend against. These attacks can impact a wide range of targets, including websites, online services, and even critical infrastructure. The consequences of a successful DoS attack can range from minor inconvenience and temporary disruption to significant financial losses, reputational damage, and even complete operational shutdown for businesses. Defending against these attacks often involves employing strategies like traffic filtering, rate limiting, and using specialized security services designed to detect and mitigate malicious traffic patterns.