The Online Social Networks (OSN) open a new vista serving millions of users and have reshaped the way people interacts. Unfortunately these networks are an emerging platform for cybercrimes such as sending malicious URLs, spams, etc. which causes a huge financial loss and social damage. In this paper, it is reviewed that OSN is a new cybercrime platform for threating agents because of the security pit falls in the existing centralised architecture and their driven functionalities. This article surveys the detailed analysis of the current state of the Online Social Networks in perspective of security and privacy issues. Additionally in this paper we presents various types of attacks that can be mounted via OSN and the defence measures against each of the attack. This literature also highlights on the types of vulnerabilities and threats in OSN. Significant threat categories and risks associated as well as a scope to circumventing these threats and vulnerabilities are also introduced.
The Internet has already deflated our world of working and living into a very small scope, thus bringing out the concept of Earth Village, in which people could communicate and co-work though thousands' miles far away from each other. This paper describes a prototype, which is just like an Earth Lab for bioinformatics, based on Web services framework to build up a network architecture for bioinformatics research and for world wide biologists to easily implement enormous, complex processes, and effectively share and access computing resources and data, regardless of how heterogeneous the format of the data is and how decentralized and distributed these resources are around the world. A diminutive and simplified example scenario is given out to realize the prototype after that.
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