Hypertext Transfer Protocol Secure (HTTPS) is method for establishing secure communications on the Internet. HTTPS is created when Hypertext Transfer Protocol (HTTP) is layered on top of the SSL/TLS protocol to provide authentication of the endpoint with which one is communicating as well as bidirectional communications encryption. This protects HTTPS communications from man-in-the-middle attacks, eavesdropping and tampering.
While Xively supports HTTP, this method of communications is not recommended. We strongly recommend that all interactions with Xively be over HTTPS.