Bridge actions are not "insecure" per se, but they also do not meet the requirements laid out in the PCI specification, as the bridge server itself logs certain aspects of the HTTP request payload (albeit in an encrypted fashion, but the fact that it is retained on the bridge server longer than is required to process the transaction means that it does not meet the PCI spec).
Cloud data actions do not log the request or response payload anywhere, as they were designed with this requirement in mind. We are currently exploring mechanisms to proxy the cloud based data action web service requests into a premise environment/translate to an alternate syntax in those environments. One potential solution we encountered while investigating this was https://ngrok.com/. There may be additional solutions provided in the future directly from PureCloud, but for the time being this is the state of things.
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Richard Schott
Genesys - Employees
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