, 2008-09-16
Wietse Venema started out as a physicist, but became interested in the security of the programs he wrote to control his physics experiments. He went on to create several well-known network and security tools, including the Security Administrator's Tool for Analyzing Networks (SATAN) and The Coroner's Toolkit with Dan Farmer. He is also the creator of the popular MTA Postfix and TCP Wrapper.
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So, how about using the same method we use to prevent unwanted read access to an emailbox: passwords.
This would require an infrastructure change to servers like postfix, mailing list software, and address books but would be a pretty simple RFC.
"Here's my email address and here's your passcode for it."
If you start getting junk using that passcode, you know who leaked it and can also disable it.
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Link to this comment: http://www.securityfocus.com/comments/columns/479/35159#35159