Identify application exit/handover points (OTG-INFO-007)
This article is part of the new OWASP Testing Guide v4.
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Some applications defer functionality to other existing applications. A common example of this is the payment gateway. Many application owners don't wish to incur the cost and hassle of maintaining their own application payment gateway, so they leverage existing payment gateway providers to handle payments for their applications.
Description of the Issue
Black Box testing and example
Gray Box testing and example
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