Spam added to whitelist

Somehow, these email addresses have been added to my whitelist. How did this happen? How can I stop it? How do I get rid of them?

John

Trained: Good (Auto)
Subject: TopLev itra
Identifier: ibLCniH1PaUpUIH//3AiUQ==
Actions: added rule <From (address) Is Equal to "ninuxlarw.518@incorporateservice.com"> to SpamSieve whitelist, added rule <From (address) Is Equal to "tyrawatts@cfl.rr.com"> to SpamSieve whitelist, added to Good corpus (2485)
Date: 2013-10-28 16:41:25 +0000

This is perfectly normal, and you don’t need to do anything special to stop or fix it. Just train the spam messages in your inbox as spam to correct the mistakes. The Open Log section of the manual explains more about what “Trained: Good (Auto)” log entries are.