If you worry about your data being intercepted, then you could definitely use SSL. In case you don’t know what it is, SSL is a cryptographic protocol that secures communications over networks such as the Internet.
Once you’ve checked that your Web server can handle SSL, simply open your wp-config.php file (located at the root of your WordPress installation), and paste the following:
Save the file, and you’re done!
Nothing hard here. WordPress uses a lot of constants to configure the software. In this case, we have simply defined the
FORCE_SSL_ADMIN constant and set its value to
true. This results in WordPress using SSL.