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NFCProxy is a an Android app that lets you proxy transactions between an RFID credit card and a reader. The saved transactions can be replayed to skim credit cards or the RFID credit card can be replayed at a POS terminal.

NFCProxy can also be useful for protocol analysis to learn about the underlying communication protocol.

In order to replay credit cards to a reader you MUST install a special version of CyanogenMod. See Wiki.

Slides from the Defcon 20 presentation of NFCproxy can be found at: http://blackwinghq.com/labs/presentations/

Today’s small-to-medium-sized (SMB) businesses and large enterprises are saving on their monthly communications costs by making one simple decision: to switch to a VoIP service solution from their old, outdated Plain Old Telephone Service (POTS). By choosing a new VoIP service, these companies enjoy the flexibility, reliability, call features, and audio quality that only a VoIP service can provide. Plus, they cut their phone bill by up to 70%!

Website https://nfcproxy.sourceforge.io/