Opera has released version 9.1 of their browser, which includes some third party fraud protection components this time around. The software, disabled by default, is provided by GeoTrust, & will be contacted with each web page request when enabled.

"The server checks the domain name of the requested page against live whitelists compiled by GeoTrust, and blacklists compiled by GeoTrust and Phishtank. Opera’s fraud protection server downloads blacklists directly from Phishtank, and sends a query to GeoTrust."