For cloud based accounts we do not store passwords, we store encrypted tokens.For Exchange, we store an encrypted password.
When you register for Findo using Facebook or Google accounts, we use an OAuth2 protocol for authorization without needing any of your passwords. OAuth2 provides authorization flows for web and desktop applications, and mobile devices by delegating user authentication to the service that hosts the user account, and authorizing us to access your account with a token instead of your password. OAuth2 access tokens are stored in an encrypted format. This means we never see any passwords for Google Drive, Gmail, Yahoo, Box, Dropbox, Evernote, OneDrive, Facebook and other cloud-based accounts you connect to Findo.
Exchange accounts are a bit differernt as we are not provided with a token. In order for Findo to access Exchange, we do use a password, so to further protect your security, we store this in an encrypted format.