NewsForge: Keeping Email Under Lock and (Public) Key

“With governments and law enforcement organizations pushing for
increasingly intrusive monitoring and logging of business email
messages, network administrators are put in an uncomfortable
situation. Even disregarding privacy implications, such systems
pose security problems at least as serious as those they attempt to
solve. A ‘master archive’ of emails is after all an extremely
tempting target to external hackers, but it also has staggering
potential for internal abuse. Ideally, we would want no centralized
mail logs, but legal and corporate requirements mandate suitable
record-keeping in the case of an internal or external audit. One
way to meet both goals is by encrypting the archive using public
key cryptography…”

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