Transport Layer Security
Besides our end-to-end encryption, all communication between the clients (web browsers, Android app, iOS app) and the servers are layered with an extra separate strict encryption channel. Only TLS 1.2 is supported and is configured with the strongest cipher suites available, including a 4096-bit Diffie-Hellman parameter for DHE cipher suites.
The strong TLS configurations enable HTTP Strict Transport Security (HSTS), OCSP Stapling, Forward Secrecy and protect against all known attacks such as Beast, Heartbleed, Poodle and much more.
More information about Transport Layer Security:
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