Language is also influenced by social , cultural , historical and political factors , and linguistics can be applied to semiotics , for instance , which is the general study of signs and symbols both within language and without .
Semiotics , for example , is the general study of signs and symbols both within language and without .
Hackers use two methods of delivering malicious code through IM : delivery of virus , trojan , or spyware within an infected file , and the use of `` socially engineered '' text with a web address that entices the recipient to click on a URL that connects him or her to a website that then downloads malicious code .