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Virus

                  A computer virus is a program that is able to copy itself when it is run. It gets activated each
                  time the program or file to which it is attached is opened or executed. It is the most common
                  type of malware. It can spread itself by infecting other programs or files. This affects the original

                  program, causing it to no longer work properly. Viruses can cause various types of damage, such
                  as data loss, system instability, and unauthorized access.
                  Worm

                  A worm is similar to virus but it can copy itself and spread rapidly to any device attached. A
                  worm does not need any program to activate it. Worms can cause network congestion, system
                  slowdowns, and data breaches.

                  Trojan Horse

                  A trojan horse is a dangerous malware. It represents itself as helpful software programs. Once
                  the user clicks on it to agree to run it, it gains access to sensitive data and then modifies, blocks,
                  or deletes the data. It cannot copy itself from one computer to another.
                  Spyware


                  A spyware steals important information and data on the device, such as account passwords or
                  bank details. It observes the user's activity without their knowledge.
                  Adware


                  An adware tracks user's browser and download history and keeps popping advertisements on
                  the screen.
                  Ransomware

                  Ransomware encrypts files or locks users out of their systems and demands a ransom payment

                  in exchange for decryption keys or access restoration. Ransomware attacks can result in data
                  loss, financial losses, and operational disruptions for individuals and organizations.
                   Clickipedia


                    In 1986, the first virus was written for Windows based PCs by two brothers, Basit and Amjad
                    Farooq Alvi, from Pakistan, who were only 17 and 24 years old at the time. They named it
                    “Brain”.



                      HARMS CAUSED BY COMPUTER MALWARE

                  Different malwares will affect your computer in different ways.

                      They can crash your hard disk.
                      They can destroy all or some of your data.
                      They decrease the processing speed of the computer.




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