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Man-in-the-Middle Attacks against the chipTAN comfort Online Banking System

ChipTAN comfort is a new system which is supposed to securely authorise online banking transactions by means of a trusted device. It is assumed that chipTAN comfort specifically protects against man-in-the-middle attacks. Such attacks are currently putting bank customers who are using the iTAN system at risk. RedTeam Pentesting examined chipTAN comfort and showed that even when using this system, man-in-the-middle attacks can compromise online banking security.

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