Introduction

Any software that causes harm to a computer system is known as malicious software or malware. Viruses, spyware, worms, trojans, adware, rootkits, and other malware can erase documents, steal protected data, or install software that has not been authorised by the user. 

• Malware can “spy” on a user’s internet traffic in some cases. Spyware and adware are two examples. Spyware tracks a user’s position and, if allowed, can collect sensitive data such as credit card details, facilitating identity theft. User information is also collected by adware, which is shared with advertisers and then combined with intrusive, triggered pop-up adverts.