1. Bringing down notaries would bring down all SSL/TLS traffic
2. Compromising the extension itself could allow for proxying of SSL traffic; exposing private information
3. Using the the notaries increases the footprint of SSL traffic; increasing the attack surface
1. Bringing down notaries would bring down all SSL/TLS traffic 2. Compromising the extension itself could allow for proxying of SSL traffic; exposing private information 3. Using the the notaries increases the footprint of SSL traffic; increasing the attack surface