A DDoS attack is a distributed denial of service attack. This attack method is one of the most common and influential network security threats faced by major enterprises and individuals at present, and its occurrence frequency is also very high, so how to judge whether it has been attacked by DDoS? What are the harms? We pass this article The article introduces it to everyone.
How to judge whether a DDoS attack is encountered?
If the following situations occur, you may have suffered a DDoS attack:
① When the network and equipment are normal, the server suddenly appears "disconnection, access freeze, user statue" and other situations;
② The CPU or memory usage of the server increases significantly;
③ There is a significant increase in the outbound or inbound traffic of the network;
④A large number of visits from unknown sources suddenly appear on the business website or application;
⑤ Login to the server failed or the server login is too slow.
What harm can a DDoS attack cause?
1. Economic loss
After suffering a DDoS attack, your origin server may not be able to provide services normally, resulting in users being unable to access your business, resulting in certain, even huge, economic losses. For example, when an e-commerce platform suffered a DDoS attack, the website could not be accessed normally or even temporarily shut down, which directly caused legitimate users to be unable to place orders and purchase goods normally.
2. Data leakage
When hackers conduct DDoS attacks on your server, they may take the opportunity to steal the core data of your business.
3. Malicious competition
Vicious competition exists in some industries. Competitors may purchase DDoS attack services through some illegal channels, and then maliciously attack your business, so as to gain a competitive advantage in the industry competition. For example, attacking a game business suddenly suffered continuous heavy traffic DDoS, resulting in a sharp drop in the number of game players, and even the game business was quickly and completely offline within a few days.