Use an HTTPS-Encrypted Connection When Browsing all time.

When you're browsing the Web,
protect yourself by using HTTPS
(Hypertext Transfer Protocol
Secure) whenever possible. HTTPS
encrypts the connection between
your PC and the Website you're visiting. Though HTTPS doesn't
guarantee that a site is secure, it
can help prevent other parties
from hacking into the network
and gaining access to your
account. Many sites use HTTPS by default: When you purchase an item online or log in to
online banking, for instance, your browser will
probably connect to the site via HTTPS
automatically. But you can go one step further by
enabling HTTPS on Facebook, Twitter, and Gmail. To use Facebook's HTTPS feature, log in to
Facebook and click Account in the upper-right
corner. Select Account Settings from the drop-
down menu, and look for ‘Account Security' on
the resulting page. Under the Account Security
heading, click Change, check the box next to Browse Facebook on a secure connection (https)
whenever possible, and click Save.

For Twitter, first log in to your account. If you're
using the new Twitter interface, click your account name in the upper-right part of the
screen, and select settings. (If you're still using
the old Twitter interface, click the Settings link in
the upper right of the window.) From there, scroll down to the bottom of the resulting page,
check the box next to Always use HTTPS, and
click Save. To enable HTTPS on Gmail, log in to your account,
click the gear icon in the upper-right corner, and
select Mail Settings from the drop-down menu.
Next, under the Browser Connection heading,
select the button labeled Always use https. When
you're all set, scroll to the bottom of the page and click Save Changes.