# Mathematical Digest

### Short Summaries of Articles about Mathematics

in the Popular Press

"Networking can be hazardous," by Philip Ball. *Nature Science Update,*9 March 2001. http://www.nature.com/nsu

This brief article discusses models for the spread of Internet viruses. Pastattempts to understand the spread of these viruses mistakenly assumedsimilarity to biological viruses. Computer viruses have a very differentbehavior and call for different kinds of mathematical models.

*--- Allyn Jackson*