Computer Crime

COMPUTER VIRUS
Computer virus is a computer program that can duplicate or copy itself and spreads by inserting copies of itself into other programs or documents. Computer viruses can be analogous to a biological virus, which spreads by inserting itself into selmakhlukhidup.
Computer viruses can damage (eg by corrupting the data on the document), make computer users feel disturbed, or no effect at all.

SPAM

Spam or junk mail can also be shaped is the abuse of electronic messaging systems to send news ads and other purposes in bulk.

Generally, spam show news in repeatedly without being asked and often not desired by the recipient. In the end, spam can cause discomfort to the users website. People who create electronic spam are called spammers.
Form of spam known generally include: spam suratelektronik, pesaninstan spam, Usenet newsgroup spam, spam mesinpencari web information (web search engine spam), spam blogs, wiki spam, spam and spam jejaringsosial classified ads.
Some other examples of spam, the e-mail containing advertising, letter brief period (SMS) on telepongenggam, news in a group forum message containing promotional items that are not related to the news group activities, spamdexing which controls a mesinpencari (search engines) to popularity looking for a particular URL, useless news and blog entry, guest book web site, fax transmissions, television ads and spam network share

TAPPING THE COMPUTER 

Tapping   crime via computer or PC, in which the goal is to loot the important data relating to that "online banking, money transfers, credit card transactions, online booking, corporate secrets.

Additional adapters (additional adapter)
Device or additional adapter is mounted on the end of the keyboard cable is then connected to the computer's CPU, so the tool can store all the data that typed through the keyboard.
Given the dangers, most likely location of this is the use of listening devices in the cafe, exhibition center / exhibition, hotel, free internet facilities at the airport or airport, etc..

For the alert and berhati2lah when using the internet in tempat2 like it if you want to check your online bank account, credit card transactions or online booking. Because after you finish mengguna it, it will be easy for the bugs to reopen your bank account numbers, because all the data you type will be stored in the "black device or bugs."