Spamming is the abuse of electronic messaging systems to send unsolicited bulk messages, which are generally undesired. While the most widely recognized form of spam is email spam, the term is applied to similar abuses in other media: instant messaging spam, Usenet newsgroup spam, Web search engine spam, spam in blogs, mobile phone messaging spam, internet forum spam and junk fax transmissions. Click here to read more...

        Hacking in simple terms means illegal intrusion into a  computer system without the permission of the computer owner/user. The most prominent definition of hacking is the act of gaining access without legal authorization to a computer or computer network. A hacker first attacks an easy target, and then uses it to hide his or her traces for launching attacks at more secure sites. The goal of an attack is to gain complete control of the system (so you can edit, delete, install, or execute any file in any user’s directory), often by gaining access to a "super-user" account. This will allow both maximum access and the ability to hide your presence.
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      Phishing is essentially an online con game, and phishers are nothing more than tech-savvy con artists and identity thieves. They use spam, fake Web sites, crimeware and other techniques to trick people into divulging account sign-in information

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        Spoofing is the creation of TCP/IP packets using somebody else's IP address. Routers use the "destination IP" address in order to forward packets through the Internet, but ignore the "source IP" address. That address is only used by the destination machine when it responds back to the source.

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        A computer virus is a computer program that can copy itself and infect a computer without permission or knowledge of the user. The original may modify the copies or the copies may modify themselves. A virus can only spread from one computer to another when its host is taken to the uninfected computer, for instance by a user sending it over a network or carrying it on a removable medium such as a floppy disk, CD, or USB drive.

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        A computer worm is a self-replicating computer program. It uses a network to send copies of itself to other nodes (computer terminals on the network) and it may do so without any user intervention. Unlike a virus, it does not need to attach itself to an existing program. Worms always harm the network (if only by consuming bandwidth), whereas viruses always infect or corrupt files on a targeted computer.

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        Trojan Horse is a destructive program that masquerades as a benign application. Unlike viruses, Trojan horses do not replicate themselves but they can be just as destructive. One of the most insidious types of Trojan horse is a program that claims to rid your computer of viruses but instead introduces viruses onto your computer.

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         Pornography is the first consistently successful ecommerce product. With deceptive marketing tactics and mouse trapping technologies, Pornography encourage customers to access their websites. Anybody including children can log on to the internet and access websites with pornographic contents with a click of a mouse. Publishing, transmitting any material in electronic form which is lascivious or appeals to the prurient interest is an offence under the provisions of section 67 of I.T. Act -2000.

Theft of software through the illegal copying of genuine programs or the counterfeiting and distribution of products intended to pass for the original. Retail revenue losses worldwide are ever increasing due to this crime. Can be done in various ways-End user copying, Hard disk loading, Counterfeiting, Illegal downloads from the internet etc..

Cyber defamation: The Criminal sends The Criminal sends emails containing defamatory matters to all concerned off the victim or post the defamatory matters on a website. Disgruntled employee may do this against boss, ex-boys friend against girl, divorced husband against wife etc.

Threatening: The Criminal sends threatening email or comes in contact in chat rooms with victim. (Any one disgruntled may do this against boss, friend or official)

Salami Attack: In such crime criminal makes insignificant changes in such a manner that such changes would go unnoticed. Criminal makes such program that deducts small amount like Rs. 2.50 per month from the account of all the customer of the Bank and deposit the same in his account. In this case no account holder will approach the bank for such small amount but criminal gains huge amount. Example citation..

Cyber Stalking: The Criminal follows the victim by sending emails, entering the chat rooms frequently.

Sale of Narcotics: There are web site which offer sale and shipment off contrabands drugs.They may use the techniques off stenography for hiding the messages.