| http://www.w3.org/ns/prov#value | - ct without a user's knowledge and deliberately alter the computer's operations. other classes of malware include back doors and spyware. ??? ??? ??? Macros instructions saved in software such as a word processing or spreadsheet program. ??? ??? ??? Anti-virus program protects a computer against viruses by identifying and removing any computer viruses found in memory, on storage media or on incomin
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