How are bug produced?

Computer infections are produced by people who desire to cause harm to others, or who desire to get control over someone else's computer system. As soon as the infection is running, it can do anything its developer desires it to, including erasing files, taking data, or sending out spam. reference A bug is a type of harmful code or program that, when performed, replicates by inserting itself into various other computer programs, data documents, or the boot field of the hard disk drive. As a result, bug can spread out throughout a network of computers as well as create serious damage.