Dangers of applying Web 2.0 technologies in E-commerce solutions

Nowadays the E-commerce concept got widespread wide spread occurrence, today it is not only web stores, but also various kinds of informational services and advertisement turnover. By growing of varieties sites competition grows too and web technologies, that allows broadening functionality of web applications and becoming more attractive, are evolve too. Now Web 2.0 concept is on everybody lips, this is new philosophy of internet applications and new web technologies, which brings new profits inside as well as new dangers. Within the Web 2.0 integration the vector of malicious attacks has been changed from web servers and their systems to the end user. In this report concept of E-commerce and Web 2.0 also main threats, appeared by reason of distribution of new technologies, and some security approaches against them are considered.