A technique originally designed to analyse DNA sequences is the latest weapon in the war against spam. An algorithm named Chung-Kwei (after a feng-shui talisman that protects the home against evil spirits) can catch nearly 97 per cent of spam.

Chung-Kwei is based on the Teiresias algorithm, developed by the bioinformatics research group at IBM's Thomas J Watson Research Center in New York, US. Teiresias was designed to search different DNA and amino acid sequences for recurring patterns, which often indicate genetic structures that have an important role.
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97%....thats impressive. What's really cool is how it is able to see through some of the text tricks that spam filters are vulnerable to. IBM plans to use it in SpamGuru but let's all hope that an open source version comes out too!