Heikki Toivonen has been working for the Open Source Applications Foundation (OSAF) since 2003. OSAF is working on a new Personal Information Manager called Chandler, which is cross-platform and written in Python. Heikki Toivonen has been working on the security aspects of Chandler, including SSL/TLS support. Before OSAF, he spent three years hacking Mozilla at Netscape Communications Corporation.