user12915: I am wondering if calling JSON-RPC from the computer it is running on is secure. I read How secure is calling bitcoind JSON-RPC? and understand why it is insecure to do so from a different computer.
Is there a secure way to call it from the same computer without using SSL?

user2306: Yes. By default, Bitcoin will only listen for RPC connections on local loopback. Local loopback cannot be accessed or spied upon by another computer. 

12915: <p>I am wondering if calling JSON-RPC from the computer it is running on is secure. I read <a href="https://bitcoin.stackexchange.com/questions/2651/how-secure-is-calling-bitcoind-json-rpc">How secure is calling bitcoind JSON-RPC?</a> and understand why it is insecure to do so from a different computer.</p>

<p>Is there a secure way to call it from the same computer <strong>without</strong> using <a href="http://en.bitcoin.it/wiki/Enabling_SSL_on_original_client_daemon%20p" rel="nofollow">SSL?</a></p>
 2306: <p>Yes. By default, Bitcoin will only listen for RPC connections on local loopback. Local loopback cannot be accessed or spied upon by another computer. </p>
