网络攻击最常见的类型
作者：***
情人节英语怎么说来源：《英语世界》2021年第01期
Increasing usage of the internet has also led to an increa in cyber-crimes/cyber-attacks. But how many types of cyber-attacks are you familiar with？ In order to tackle cyber threats， you must be well aware of its nature.jaywalk
What are cyber-attacks？
A cyber-attack is defined as an attack originated by a digital system against another digital device， website， or any other digital system and compromis1 its privacy， reliability or the data stored in it.
Not only the attacks are a threat to digital individuals but are a great threat to business as well.
Why are cyber-attacks initiated？
Before moving further to types of cyber-attacks， let us first have a look at the reasons for initiating cyber-attacks：
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Acquiring unauthorized2 access to a digital network， system or its data.
Denial of rvice.
曲轴箱 Virus or malware3 installation.
Hacking a website for unsolicited4 purpos.
To get access to personal and cure information of people and business.
Unauthorized u of a computer.
Types of cyber-attacks
Cyber-attacks can be of various types. You need to be aware of all tho types of cystationery可数吗
ber-attacks to guarantee your utmost safety and curity.
1） Malware
Malware is considered as software that is intentionally developed to disrupt computer， rver， client， or computer network.
Malware can be in the form of scripts， executable codes， active content， and other malicious software.
The codes can be computer worms， virus， ransomware5， Trojan hors， adware， spyware， or scare ware.
The most prominent6 damages caud by malware are：
title是什么意思 As ransomware， it blocks access to key components of the network.
Installs harmful software/malware.
As spyware， they can steal valuable information from your system.
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They can damage certain hardware components of your system and make them inoperable.
2） Phishingwhat about now
The main aim of phishing is to steal restricted and private information such as credit card details， login ids， and passwords， etc.
By impersonating7 onelf as a reliable establishment in electronic com-munication. It is usually done through email spoofing or instant messaging.
They carry a link that directs urs to a fake website which looks similar to the legitimate site and asks them to enter personal and cure information. It is a fraudulent activity intended to cheat urs.
They bait the urs by claiming to be from a reliable third group such as auction sites， online payment processors， social web sites， banks， or IT administrators.
3） Man-in-the-middle attack
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In man-in-the-middle （MitM） the invader covertly8 modifies the chats and dialogues between two people who are communicating with each other.
In a man-in-the-middle attack， the communicators are made to believe that they are directly communicating with each other without any interference from any third party.
But the truth is that the whole communication is controlled by the invader while making the communicators believe that they are talking to each other. It is also known as eavesdropping.
The entry points for MitM
The invaders can easily take control of private chats over an uncured public Wi-Fi. Invaders can int9 between the device and the network and can take control of the private chats in the network. The communicators without having any idea pass all the conversation to the invaders.
It can also be done through malware. In such cas， the invader installs software o
n the victim’s device to process all his information.
4） Denial-of-rvice attack
In denial-of-rvice attack （DoS attack） the offender tries to make digital asts inaccessible to its anticipated urs.
The offender provisionally10 inter-rupts rvices of a host who is linked to the Internet. It involves overflowing the besieged11 machine with surplus applications to burden it from fulfilling the legitimate requests.
follow 5） SQL injection attack
A Structured Query Language （SQL） injection attack allows the intruders to run malicious SQL statements. The SQL statements have the power to take over the databa rver.
Using SQL injection intruders can overcome application curity measures.
