If you are using a Yahoo Mail account you have probably noticed that the account login is using SSL but that the mail interface itself after logging in is not. You can verify that by checking the address bar of your web browser when you open the Yahoo Mail sign in page which should begin with https:// and not http://.
SSL is beneficial for the security of the connection as it encrypts the data so that attackers can't record the data flow anymore to spy on your data. It is more complicated than that but that's beyond the scope of the article.
Once you are signed in to Yahoo! Mail you will notice that the connection switches to http instead. That's bad from a security point of view, especially if you are connecting to Yahoo! Mail from public networks or wireless networks such as your school's library, a University campus or McDonalds.
If you sign in to Yahoo! Mail via a non-secure Internet connection such as a wireless network, your Yahoo! account is more vulnerable to hijacking. Non-secure networks make it easier for someone to impersonate you and gain full access to your Yahoo! account, including any sensitive data you may be storing. Enhance the security of your entire Yahoo! Mail session with HTTPS data encryption (via security socket layer, or SSL) and protect your account from hijackers and fraud.
I can't really say when Yahoo added SSL as an option to Yahoo! Mail, only that it is now available and that you can turn it on to improve the security of your connection.
Follow these easy steps to turn on SSL on Yahoo! Mail.
You should see a lock now in front and https in front of the web address.
You should not encounter any issues after switching to https. If you do, you can turn off SSL the very same way again. Check out this Yahoo! Help page for additional information about enabling or disabling SSL. (via)Advertisement
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