DDoShyökkäykset

DDoShyökkäykset, or Distributed Denial of Service (DDoS) attacks, are cyberattacks aimed at disrupting the normal functioning of a targeted server, service, or network. These attacks are characterized by an overwhelming flood of traffic from multiple sources, which can overwhelm the target's resources and render it inaccessible to legitimate users. DDoS attacks can target various types of infrastructure, including websites, online services, and network hardware.

The primary goal of a DDoS attack is to deny service to legitimate users, often with the intention of causing financial loss, disrupting operations, or gaining political advantage. These attacks can be executed using various methods, such as exploiting vulnerabilities in network protocols, overwhelming network bandwidth, or consuming server resources.

DDoS attacks can be categorized into several types based on the layer of the OSI model they target. Layer 3 and Layer 4 attacks focus on network and transport layers, respectively, while Layer 7 attacks target the application layer. Common techniques include UDP floods, SYN floods, and HTTP floods.

Mitigating DDoS attacks involves a combination of preventive measures, such as network architecture design, traffic monitoring, and the use of specialized DDoS mitigation services. These services often employ techniques like traffic scrubbing, rate limiting, and load balancing to absorb and filter malicious traffic, ensuring that legitimate users can continue to access the targeted service.

The impact of DDoS attacks can be significant, leading to financial losses, reputational damage, and operational disruptions. As such, organizations and individuals must remain vigilant and employ robust security measures to protect against these threats.