DDoS attacks are becoming increasingly common, especially for people who have websites. This happens because DDoS attacks are harder to trace and the perpetrators are hard to identify.
As we advance into the IoT era, it's hard to deny that DDoS attacks are becoming more frequent and powerful. This blog will cover DDoS attacks and how to prevent them.
A DDoS (Distributed Denial of Service) attack is a cyberattack that aims to crash a system by flooding the system with fake traffic. The sudden spike in connection requests overwhelms the server and denies the rest of the legitimate users access to the system.
Several DDoS attacks have occurred in the past. One of the most famous DDoS attacks targeted the Sony PlayStation Network and Xbox Live.
DDoS attacks can vary in size and scope, but the biggest attacks can destroy the entire internet. The scale of the attack depends on the number of compromised devices used.
According to Symantec's Internet Security Threat Report, 2016, "The number of devices that were compromised in DDoS attacks has increased from approximately 300,000."
The most common objectives behind a DDoS attack can be to:
DDoS attacks are caused by using a botnet. A botnet is a computer network infected by malware under the control of a single attacking party, known as the “bot-herder.” The botnet sends countless messages or requests for a server to slow down.
DDoS attackers primarily target all forms of businesses. Most commonly, these can be:
There are basically three types of DDoS attacks, namely,
1. Application-layer attacks
2. Protocol attacks
3. Volumetric attacks
The differences between these types of attacks are based on the techniques and different strategies used by the hackers.
Application-layer attacks the target and disrupts a single app instead of an entire network. By generating many HTTP requests, hackers can exhaust the target server's ability to respond, leaving common web apps, internet-connected apps, and cloud services vulnerable.
Protocol DDoS attacks, also known as network-layer attacks, exploit vulnerabilities in the protocols that manage internet communications. Unlike app-level DDoS attacks, which target a specific application, a protocol attack aims to bring down the entire network.
A volume-based DDoS attack floods the target with false data requests, thus consuming its available bandwidth and preventing legitimate traffic from getting through. The attacker's traffic blocks legitimate users from accessing the necessary services, resulting in network congestion.
The best-practiced techniques by which one can prevent DDoS attacks are:
Network security is absolutely essential for stopping any DDoS attack attempt. Because an attack only has an impact if a hacker can pile up enough requests over time, the ability to identify a DDoS early on is vital to keeping the damage under control.
The different types of network security you can use to prevent DDoS attacks can be:
DDoS attacks can be devastating to businesses of all sizes, which is why it's so important to make sure your network infrastructure is as secure as possible. By securing networking devices such as routers, load-balancers, and Domain Name Systems (DNS), you can help protect your business from these types of attacks. Partnering with a reputable managed IT support services provider like uswired.com can provide the expertise and proactive measures needed to safeguard your network.
By relying on multiple distributed servers, it becomes more difficult for a hacker to attack all servers at the same time. If an attacker successfully launches a DDoS on a single hosting device, the other servers remain unaffected and take on the extra traffic until the targeted system is back online. This makes it difficult for attackers to take down an entire system with a DDoS attack.
Continuous monitoring (CM) is an effective method of detecting possible DDoS activity by analyzing traffic in real time. The benefits of using CM are as follows:
Cloud-based protection can scale and handle even a major volumetric DDoS attack with ease.
Some of the key benefits of working with a third-party vendor are:
A hacker perpetuating a DDoS attack will likely send requests to every device on your network to increase the power of the attack. Your security team can thwart this method by limiting network broadcasting between devices.
By limiting (or, where possible, disabling) broadcast forwarding, you can effectively disrupt a high-volume DDoS attempt. Where possible, you can also tell employees to disable echo and charge services.
It’s important that your users — namely, your employees — are trained on how to identify the early signs of a DDoS attack. This is particularly important if your staff mainly work off-premises (for example, because your business operates remotely and/or you employ people in other countries using an employer of record service such as Remote).
By teaching your staff about the warning signs to look out for, you may be able to identify a DDoS attempt early, enabling you to take action quickly and prevent a successful attack — or at least, mitigate the damage it causes. Common signs of a DDoS include:
According to a report on cybersecurity published by Cisco, a prediction is made that the average number of annual DDoS attempts will rise to 15.4 million by 2023. With numbers like that, it's important for businesses to be proactive and ensure their online security. We hope this blog post has helped you understand DDoS attacks better and that you're now more prepared for this type of cyber attack if it does happen to you read more about DDoS attacks on mobile apps.