What should you be looking for when it comes to selecting an appropriate solution?
The levels of security you need will, of course, differ. For some message transport, encryption at the protocol level is enough, while for others this will not be sufficient.
Your approach cannot be complex, it cannot be intrusive in the way email is used, and, critically, it cannot be too difficult for the recipient to easily access the information in the message.
Failing to get this right will be detrimental to business and its efficiency, as well as to customer satisfaction and ultimately to the information security approach itself. Getting this challenge right by making the process simple and clear, and the recipient experience frictionless and efficient, will carry significant benefit.
For each enterprise, encryption criteria is likely to be weighted differently based on specific needs
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