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Why are we still talking about email security?

THE vast majority of chief information security officers (CISOs) do implement email security. However, there's an incipient problem, an elephant in the room, which needs to be addressed.

CISOs are often blindsided by this problem — they just don't see it at all. The problem is that CISOs do not know whether or not their email security is actually working and if so, to what extent.