Page 4 - security threats new-1
P. 4

➢ Use powerful antivirus and anti-malware software.

                   ➢ Use powerful antivirus and anti-malware software.


               Different types of malicious software…..



               Computer virus




               A computer virus is malicious software which self-replicates and
               attaches itself to other files/ programs. it is capable of executing
               secretly when the host program /file is activated .the different types

               of computer virus are memory-resident virus ,program file virus,
               boot sector virus, stealth virus, macro virus and e-mail virus.


               How does a computer virus attack?


               Once a virus has successfully attached to a program, file, or
               document, the virus will lie dormant until circumstances cause the

               computer or device to execute its code. In order for a virus to infect
               your computer, you have to run the infected program, which in turn
               causes the virus code to be executed


               How do computer viruses spread?


               In a constantly connected world, you can contract a computer virus

               in many ways, some more obvious than others. Viruses can be
               spread through email and text message attachments, Internet file
               downloads, and social media scam links. Your mobile devices and

               smart phones can become infected with mobile viruses through
               shady app downloads. Viruses can hide disguised as attachments of

               socially shareable content such as funny images, greeting cards, or
               audio and video files


               What are the different types of computer viruses?
   1   2   3   4   5   6   7   8   9