Bid sniping is a dubious practice used in online auctions whereby a bidder makes a bid in the closing moments in an attempt to deny other bidders time to react. The primary goal for a bid sniper is to win the auction for the lowest price possible, without the risk of being forced into submitting...

Bid sniping is the most common strategy used in online auctions whereby the bidder places a bid in the closing seconds in order to win the auction. This denies other bidders the time to react and suppresses the final price. While bid sniping is beneficial to the winner, it disadvantages other...

Online auctions are inherently insecure and there exist many opportunities for participants to cheat. Cryptographic protocols can be applied to help alleviate some of these problems. However, different auction types have differing security requirements. This makes it difficult to construct...

Buying and selling online is inherently insecure. Misuse of an individual's personal information is now the leading concern among those who engage in e-commerce. This thesis examines privacy and security issues in online auctions. Various auction fraud issues are investigated, and several novel...

Online auctions are a popular means for exchanging items over the Internet. However, are many inherent security and fairness concerns. Participants can behave in an undesirable and fraudulent manner in an attempt to gain an advantage at the expense of rivals. For example, a bidder might seek to...