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The Mystery Behind DDoS (Distributed Denial of Service)

This post will reveal the reason behind the DDoS attacks and the things you should know to prevent it and how to act accordingly.

What Is DDoS?

Distributed Denial of Service (DDoS) is an endeavor to make on online administration inaccessible by overpowering it with activity from different sources.

They focus in a wide assortment of critical assets, from banks to news sites, and present a major challenge to ensuring individuals can distribute and get to imperative data.

DDoS Attacks And Its Impact


A successful DDoS attack is widespread regarding impact. Site performance is severely compromised, resulting in frustrated customers and other users. It will violate Service-Level agreements, that will trigger costly service credits. It will tarning customer relations, sometimes permanently.

Loss of productivity, loss of revenue, your IT expenses will escalate quickly, and the losses keep mounting. The numbers are outstanding. Estimates from IDC, Forrester, and the Yankee Group foresee the cost of a 24-hour downtime for a large kind of company approached US$30 million.

A string of DDoS attacks against eBay, Amazon, and many other big major websites in the previous DDoS attack on February 2000 caused an estimated cumulative loss of US$1.2 billion, as per the Yankee Group.

And once again in January 2001, Microsoft lost roughly US$500 million over the course of a few days from a DDoS attack on their website. Businesses must take steps to protect themselves from these hurtful attacks by hitting up the defenses at their most vulnerable points.

Why Do People Perform DDoS Attack?

Here are seven possible reasons for a DDoS attack.

1. Extortion

There have been few situations where a DDoS is followed by a ransom note. When the site is down, the attackers request cash in return for halting their assaults. Some even make the threat before they attack. In both cases, their rate of accomplishment is generally low.

2. Business Competition

Envision if Dunkin’ Donuts attempted to slow down Krispy Kreme’s business by barricading their entryways overnight. That is kind of what might as well be called utilizing a DDoS attack for anti-competitive business practices.

On the off chance that your site is down, your services are disrupted, and consumers may rush to your rival. Little amounts of downtime can wind up costing a company a large number of dollars. It can likewise promote negative associations with a brand so that clients no more trust their services.

3. Hacktivism

Others use the DDoS attack as a way to express their feedback on everything from governments to any other organization. The websites of the Governments in some places including Georgia, the U.S and South Korea and many others are regularly attacked using DDoS cyber warfare.

Some estimate these attacks could even be executed by different countries. Other politically motivated attacks may be against organizations which the attacker disagrees with. The subject of disapproval could be anything coming from the ethical concerns to an upset from an online player about a recent update that “nerfed” their favorite game.

4. “Script Kiddies”

Are the recently mentioned clients who are attacking computer games are frequently alluded to as “script kiddies” in light of the fact that their inspiration is seen as whimsical and it is conceivable they’re running a simple script to perform their DDoS attack.

The tools to pull off a DDoS attack isn’t such a mystery anymore. Additionally, let’s be realistic, having the capacity to take out a company from your bedroom is amusingly empowering in a David and Goliath kind of way.

5. Security Bluffs

Some DDoS attacks are digital bluffs to divert a bank while lawbreakers separate profitable monetary data from an online heist. Criminals pulled off a trick like this on the Bank of the West, taking ?900,000 from one of their clients amid a DDoS attack.

6. Internal Testing

Although they may not admit to it, sometimes a DDoS accident is the consequence of an association’s particular activities. It’s either a mix-up or they are deliberately trying their system quality to perceive the amount of transfer speed it can deal with.

7. Booter Services

To fulfill any of the above, you can lease a botnet or contract a booter service to do it for you. For low expenses showcased to script kiddies, DDoS attack abilities are accessible to essentially everybody.

These booter services are hard to bring down too, in light of the fact that their public face works on an alternate ISP than where the attack is originating from.

Defense Techniques

Here is a list of some of the most effective defense techniques for a DDoS attack:

1. Firewalls

One of the most common ways to prevent outside attackers to infiltrate your system is the firewall. It could simply rule to deny every incoming traffics by the attackers based on ports, protocols, and the originating IP addresses. But hard attacks might be a little difficult to block that is why you should not only rely on your firewall.

2. Routers

The router has a rate limiter and ACL capability that can be manually set. But most routers can be overwhelmed by DoS attacks. But some of the routers also have optional features that can reduce the impact of flooding like Cisco IOS.

3. Switch

Some do have switch some rate limiter and ACL capability too just like routers. Some switches provide automatic and system-wide traffic shaping, rate limiting, deep packet inspection, delayed binding (TCP splicing), and Bogon filtering false IP filtering to identify and repair denial-of-service attacks through automatic rate filtering and WAN Link failover and balancing.

4. Blackholing And Sinkholing

By doing blackholing, the traffic to the attacked IP address or DNS is sent to a “black hole” a null interface or a non-existent server. The ISP can manage it for it to be more efficient and to avoid affecting the network connectivity.

While Sinkholing routes the traffic to a valid IP address that will analyze the traffic and will reject the bad packets. Though Sinkholing is not very efficient for most severe attacks.

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Therefore, I can say that DDoS assaults will keep on developing in scale and seriousness on account of progressively intense (and promptly accessible) attack tools, the different points of weaknesses of the Internet, and business’ expanding dependence on the Internet.

As the expense of these assaults rises, suppliers, enterprises, and governments must react to secure their investments, income, and administrations.

What is required is another kind of solution that supplements existing security solutions, for example, firewalls and IDSs by distinguishing the most modern DDoS attacks, as well as conveying the capacity to block the increasingly complicated and hard to detect kinds of attack traffic without hitting legitimate business transactions.

About Nirmala Santha Kumar

Nirmala is a dedicated blogger who blogs about technology. She is one of the active partners in this blog who would like to publish posts on her fascinating topics.

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