Palm Support recently released Security Updates for the Treo 650, 680, and 700p smartphones.
When the Treo 650/680/700p smartphone password protection is enabled, the password protection can be partially circumvented by running the Find feature while on the "Make Emergency Call" screen. This would allow a malicious user to view a list of search results from the Treo 650/680/700p's built-in applications such as Contacts, Calendar, Tasks, Memos and Email. The malicious user cannot access or display anything beyond the search results list. An update is now available to address this.
Read more:
Treo 650 Security Patch
Treo 680 Security Patch
Treo 700p Security Patch