All information that is transferred over the Internet between your computer or device and 22Seven servers is encrypted using 256-bit encryption. They use an Extended Validation SSL certificate provided by Entrust - a globally trusted digital certificate authority. This ensures that, even if intercepted, your information remains protected. In addition, all information transferred between Tweak’s and 22Seven’s servers and those of their service providers, like Yodlee, is encrypted. This ensures that at no time is your information visible in clear-text whilst in transit.
More about Entrust here.