1- Installing an appropriate antivirus program. These are the most important defense steps needed to protect the PC from viruses, including worms and Trojans. Users are advised to install a suitable antivirus program on the device, as there are many free programs besides paid programs available on the market. Antivirus software can slow down the device, but it represents the first step towards protecting the device from both viruses and infected attachments in emails. 

2. Installation of Firewall (Firewall) programs. It aims to protect against hacks and hacker attacks, known as firewall programs. It also controls data traffic across the network, scanning data packets passing through the network, and choosing whether to allow these packets to pass to the computer. 

3- Update the device first-hand. Because official updates usually include improvements, such as enhanced security and improved performance. Moreover, the update helps the device run smoothly. 

4. Be careful when opening attachments in emails. Care should be taken when opening attachments contained in emails on your personal device, especially when attachments in your email inbox reach you inside anonymous messages. Email attachments are preferred to be detected via security software before opening them. 

5. Do not upload files from unreliable websites. Be more careful when downloading program or files from unknown websites or don’t know the sources of it . Some time , these files may contain viruses or spy files, and may sneak into your device without your knowledge. 

6- Remove temporary files. On every internet browsing, your computer stores browsing information to increase speed. For example, information is stored when you place an order online, or use certain banking services on the information networks, But the user may not know that his data may be vitally attacked or hacked by hackers, and lose confidential information because he has not taken proper action to protect the device. 

7- Using a secure internet browser. Users must choose a secure web browser. The secure browser features greater privacy protection, and anti-spyware tools that enable secure web connectivity. 

8- Use a complex password. In order to protect data a long and complex password should be created and kept in a safe place, making it impossible for hackers to steal it. 

9. Installing an anti-malicious file program. Users are advised to install an anti-malware file software that scans the PC, detects any intrusion cases, and helps remove this type of file. 

10- Encrypt the router. It is necessary to encrypt a router so that it is not easy for any hacker from the Internet to access your network, or perhaps steal information stored on the computer