[jstrafy]

Have covered this question in a few replies but in short: anything you share on Circles is encrypted in transit with SSL/TLS and encrypted at rest on the server. We hold the keys, at least for now until we implement a better solution. Posts are decrypted server-side and are encrypted in transit with SSL/TLS.

You can trust us because we say we are going to respect your privacy and we need to build trust and do what we say we will in order to build a great brand. I understand this often isn't enough and trust has been abused by other companies, and for that we'll keep pushing on the privacy front of the product.