CIAB White Paper: This paper was developed in response to The Council members’ requests for guidance on which email encryption service would best help them comply with heightened regulations regarding email encryption in certain circumstances. Why is this important now? There is a recent dramatic expansion of HIPAA’s regulatory net. Email encryption is the best method of complying with data privacy rules. The Council’s members report the marketplace for email encryption services has become sufficiently complex to evaluate; the vendor selection process is complex.This analysis has been reviewed and tested by The Council for accuracy. The Council interviewed member firms using the email encryption vendors discussed in the analysis, to confirm accuracy of the analysis results. From this review The Council believes the framework and results are a fair and useful representation of the marketplace, based on publicly available information. In 2010 and 2011, The Council reported its top technology pick in its Email Encryption Buyer’s Guide as RPost.