Protecting the important information that exists in computer systems has become a very important issue today, and many people are trying to harm the security of information in different ways, as well as using the information contained in other people's computers in order to achieve their desired results, as you know, there are profiteers who use different factors to achieve their desires, one of which is the use of malwares, which we will look at different types of it, as well as ways to protect information against them.

What is Malware?

 In fact, malware is a type of code that will ultimately disrupt your information security system and allow profiteers to gain access to other people's information through different devices, once a system is infected with malware, different things may happen to that, for example spam emails may be sent by the infected system or all passwords may be stolen as well as other things that may happen.In general, security holes have the worst effect because if they exist, different types of malware can penetrate the system.

Types of Malwares:

- Viruses:

Viruses are programs that multiply themselves and eventually cause a lot of malware in the system, they are very popular among users these days and users do their best to be able to control the viruses completely and prevent them from infiltrating their systems.

- Worm:

These types of malwares look for systems with security holes, after finding an insecure computer, they will attack it, in addition to the disruptions they cause in that system, they use the infected system to attack others as well.

- Trojan Horse:

This type of Malware seems to be a useful program in the user’s point of view, and the user has a strong desire to download the program and run it, but after downloading the program, it implements other malicious actions in the system and causes some serious computer problems.

- Backdoor / Trapdoor:

This type makes it easier for hackers to log in and infiltrate the system in further attacks.

- Spyware:

It is a kind of software that steals information of systems and causes damage to it, among the types of spyware, we can mention Keylogger, which has the ability to record all the work that the user does with the computer after logging in and send it to the people who have entered this software into their system.

- Rootkit:

Rootkit allows hackers to do all their work secretly on users' systems and manipulate operating systems to prevent suspicious activity from being recognized in order to steal information.

- Adware:

This type of Malware is a program that users do not want to see, but are displayed to the user without their consent. 

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