Bangalore: Facebook is the biggest revolution internet world has seen in the last decade. Where entire Internet took 10 years to reach from 16 million to 900 million subscribers, Facebook did that in just 6 years from 2006. It has more than 900 million as of April 2012.

As it is said that “where there is crowd, there are criminals”, Facebook is also no exception. With the increasing number of users, Facebook also breeds a whole lot of scamsters whose objective is mainly money, personal data or page hits.

An incident happened when a person received a message on Facebook saying that his friend has been robbed of money and mobile in Paris while holidaying and asked to deposit money in a strange account.

In 2009, a woman named Leanne Saylor took an IQ test on Facebook. She was asked to enter her mobile phone number to receive the results on her phone. With the results, she also got subscribed to three mobile text messaging services which cost her $44 on her mobile bill.

The problem lies with the nature of Facebook applications which asks for valuable information from the user and the use of this information is entirely dependent on the app developer. Also many links redirects a user to scammy product pages and premium subscription services.

Most dangerous is the situation when a user either downloads a piece of software without fully understanding what it does or a piece of software downloads itself on to the computer without the user's consent.

To keep yourselves prevented, you can choose to be notified by email or text when someone accesses your account from a strange device or machine. There is a feature called Secure Browsing for this in Facebook. You can also add passwords to different apps you use.