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As days are passing online payments is getting popular and for this people uses various modes of payment like Debit card, Credit Card, electronic wallet, e-banking etc. People purchase products over the internet and also pay the bill online, which is easy to implement and also saves the time. But the only question that comes in the mind of every person is about the security of data which has been shared by the person while on-line payments. In this paper we tried to answer certain queries related to security of online payments and also discussed various ways to overcome security threats related to online payments.

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Over the last few decades, the researchers have been fascinated towards vehicular networks. Vehicular ad-hoc network (VANET) is a highly dynamic wheeled network, where the on road vehicles and road -side units considered as nodes to allow the wireless communication. Each node acts as the host in VANETs. Due to high dynamic nature of VANETs the mobility pattern and the network topologies change frequently, that make it differ from the other type of ad-hoc network. The challenge of this research is a crucial designing for dynamic routing protocol in VANETs. This paper proposes a cluster-based approach for dynamic routing in VANETs. This new routing approach have an aim of increasing the overall network throughput, delivery ratio with less normalized routing load in comparison of AODV. Extensive simulations are carried out in NS2 to appraise the efficiency of the proposed cluster-based routing approach.

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