A Virus is a program, software or piece of code that is loaded into the computer, mobile phone without users acknowledgment of the user. It runs in the background without users permission and perform unwanted tasks. It can harm the computer’s data, corrupt the operating system or can hack the confidential data like online banking passwords. It can also slow down the performance of the PC, Android smartphone or mobile phone.
The worms, trojan horses and malicious programs all are different types of viruses. The virus in your device mostly enters from a USB Thumb flash drive or through Internet. It can be prevented and removed by installing an Antivirus Program in the computer which will try to block all the malicious attacks online and offline as well.