The revolution of e-commerce has led the e-payment systems to be very popular with the on-line buyers. The magnitude of the on-line transactions is rapidly increasing by every day. The security concerns have been on the rise with the increase of the volume of on-line businesses transactions. The smart-phones, user-friendly apps, easy user-interface has made electronic business to Worms, Trojans, viruses, phishing, pharming, spoofing, man-in the middle, denial of service attack, transaction poisoning and spamming are the most common threats.