security

Electronic commerce, e-commerce or ecommerce consists primarily of the distributing, buying, selling, marketing, and servicing of products or services over electronic systems such as the Internet and other computer networks. The information technology industry might see it as an electronic business application aimed at commercial transactions.

Internet marketing is the use of the Internet to advertise and sell goods and services. Internet Marketing includes pay per click advertising, banner ads, e-mail marketing, search engine marketing (including search engine optimization), blog marketing, and article marketing.

An example of the front in a typical credit card:

1. Issuing bank logo
2. EMV chip on "smart cards"
3. Hologram
4. Credit card number
5. Card brand logo
6. Expiration Date
7. Card Holder Name

An example of the reverse side of a typical credit card:

1. Magnetic Stripe
2. Signature Strip
3. Card Security Code

The Merchant's side

From the merchant's view point, the transaction, if it is made using a bank credit card, is often much more secure than receiving payment with a check or carrying an unpaid balance because the issuing bank commits to pay the merchant the moment the trasaction is verified. The bank charges a commission to the merchant for this service and there may be a certain delay before the agreed payment is received by the merchant. In addition, a merchant may be penalized or have their ability to receive payment using that credit card restricted if there are too many cancellations or reversals of charges.

Adware or advertising-supported software is any software package which automatically plays, displays, or downloads advertising material to a computer after the software is installed on it or while the application is being used.

Malicious websites may attempt to install spyware on readers' computers. In this screenshot a spamblog has triggered a pop-up that offers spyware in the guise of a security upgrade.