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Key Takeaway
A Denial of Service (DoS) attack is a type of cyberattack that aims to make a computer or network resource unavailable to its intended users. It is usually caused by flooding the target with requests or data packets until it is overwhelmed and unable to respond. There are four concise steps that will help you prevent and recover from a denial-of-service attack discussed below.
A denial of service attack is a type of cyberattack in which an attacker causes a target system to no longer be available for legitimate requests by overloading it with bogus requests. A DoS attack can be conducted in a number of ways, including flooding the target system with requests from multiple sources simultaneously (known as a distributed DoS or DDoS attack), sending requests that are too large or too numerous for the target system to handle, and using automated tools that send requests without human intervention.
There are different types of denial of service attacks with different goals.
GraphQL is typically used with a client application, such as a web browser or a mobile application. The client application requests data from the API using GraphQL and parses the response into a readable format. For example, you might use GraphQL to get information about a user account from an API provider such as Facebook. This response would be processed on the client by converting the JSON result to HTML, then sent to the user’s web browser. Alternatively, you could use GraphQL to request a list of products from an API provider such as Amazon. The response would be parsed by the JavaScript in the client application which would generate an HTML page for the user to view the list of products. In both these examples, the client application would be able to process the result because it speaks GraphQL.
A denial of service attack that is designed to bring down a website is referred to as website defacement or a Distributed Denial of Service (DDoS) attack. This is a term for when an attacker uses several computers to send millions of requests for data to a server. Websites and other online services are usually designed to support a certain amount of traffic before experiencing scale problems, and a denial of service attack is designed to cause the site to become overloaded with traffic and fail. Many websites are easily brought down due to this type of attack because the owners often neglect to implement the proper security measures to protect their website from these types of attacks.
A DoS attack and a DDoS attack are similar in that they both attempt to deny access to the website by overwhelming it with traffic or phony requests. However, there are some key differences between the two attacks. In a DoS attack, there is a third party involved who is sending the attack to the target system. Whereas in a DDoS attack, the target system is attacked directly by a botnet. Both are orchestrated by a third party, but the difference is that there is one attacking machine (dos) vs many attacking machines (ddos). A DDoS attack is usually more difficult to mitigate as the attack is coming from a large number of sources, all of which will need to be blocked in some way.
In 1982 the first DoS attack was conducted on the Arpanet using a program called ‘Denial of Service’. This program was designed to flood systems with traffic so that they would crash. In 1984, an attack was conducted on the US Naval Command and Control Network (NCN) using a program called Solar Sunrise. The attackers used fake login requests to infiltrate the security system of the NCN, causing systems to disconnect from the network. This was the first known DoS attack that used a computer to target other systems.
DoS attacks became more common in the 1990s when hackers started using them to attack websites. One notable example of this was the infamous attack by hacker ‘Mafiaboy’ on the official website of the popular game called Runescape. This attack caused the website to be inaccessible for hours and was one of the first DDoS attacks that used a botnet to attack a website. Attacks like these pose a serious threat to companies and governments, as well as Internet users at large.
Another example of a physical DoS attack was the “Mirai” malware campaign that took down large swathes of the internet in 2017. This malware was used to create botnets which were then used to attack websites by sending huge volumes of traffic to these websites and causing them to malfunction. This cyberattack had major implications for companies that use the internet to conduct business such as online stores and large e-commerce sites.
Here are four concise steps that will help you prevent and recover from a denial-of-service attack:
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