Apple today issued a security update for Safari.  Hit your software update or head here for more details.

This update is recommended for all Safari users and includes improvements to performance, stability, and security including:

- Improved JavaScript performance
- Improved Full History Search performance for users with a large number of history items
- Stability improvements for 3rd-party plug-ins, the search field and Yahoo! Mail

For detailed information on the security content of this update, please visit this site: http://support.apple.com/kb/HT1222.