What is DDOS ?
DDoS Attack means "Distributed Denial-of-Service (DDoS) Attack" and it is a cybercrime in which the attacker floods a server with internet traffic to prevent users from accessing connected online services and sites.
Motivations for carrying out a DDoS vary widely, as do the types of individuals and organizations eager to perpetrate this form of cyberattack. Some attacks are carried out by disgruntled individuals and hacktivists wanting to take down a company's servers simply to make a statement, have fun by exploiting cyber weakness, or express disapproval.
Other distributed denial-of-service attacks are financially motivated, such as a competitor disrupting or shutting down another business's online operations to steal business away in the meantime. Others involve extortion, in which perpetrators attack a company and install hostageware or ransomware on their servers, then force them to pay a large financial sum for the damage to be reversed.
DDoS attacks are on the rise, and even some of the largest global companies are not immune to being "DDoS'ed". The largest attack in history occurred in February 2020 to none other than Amazon Web Services (AWS), overtaking an earlier attack on GitHub two years prior. DDoS ramifications include a drop in legitimate traffic, lost business, and reputation damage.
As the Internet of Things (IoT) continues to proliferate, as do the number of remote employees working from home, and so will the number of devices connected to a network. The security of each IoT device may not necessarily keep up, leaving the network to which it is connected vulnerable to attack. As such, the importance of DDoS protection and mitigation is crucial.
HOW DDOS ATTACK WORKS
A DDoS attack aims to overwhelm the devices, services, and network of its intended target with fake internet traffic, rendering them inaccessible to or useless for legitimate users.
DoS vs. DDoS
A distributed denial-of-service attack is a subcategory of the more general denial-of-service (DoS) attack.
In a DoS attack, the attacker uses a single internet connection to
barrage a target with fake requests or to try and exploit a
cybersecurity vulnerability. DDoS is larger in scale. It utilizes
thousands (even millions) of connected devices to fulfill its goal. The
sheer volume of the devices used makes DDoS much harder to fight.
Botnets
Botnets are the primary way distributed denial-of-service-attacks are carried out. The attacker will hack into computers or other devices and install a malicious piece of code, or malware, called a bot. Together, the infected computers form a network called a botnet. The attacker then instructs the botnet to overwhelm the victim's servers and devices with more connection requests than they can handle.
What is DDOS Attack: Attack Symptoms and How to Identify
One of the biggest issues with identifying a DDoS attack is that the symptoms are not unusual. Many of the symptoms are similar to what technology users encounter every day, including slow upload or download performance speeds, the website becoming unavailable to view, a dropped internet connection, unusual media and content, or an excessive amount of spam.
Further, a DDoS attack may last anywhere from a few hours to a few months, and the degree of attack can vary.