SSL certificates are used to encrypt traffic between two devices, proving that your site is what it says it is, and that it’s safe. About 90% of sites use SSL encryption, and you see it as the ‘https’ bit in your browser’s address bar; it might also have a padlock symbol or turn the address bar green.
As part of SSL you have ‘SHA’, which is the algorithm used to generate the certificate.
Until recently most sites have been using SHA-1, but it’s not really safe any more, so lots of experts want to upgrade to SHA-2, which is much stronger and supported nearly everywhere.
The people behind our browsers have plans to move everything over to SHA-2, but it might take years. Google has decided to take the lead though, and is pushing for it to happen sooner.
As we get closer to 2015, warning symbols will start to appear in Chrome’s browser URL bar to show that the site you’re on may be using SHA-1 and may not be completely safe.
For businesses using SHA-1 it’s important to upgrade to SHA-2 as soon as you can, to protect your customers’ – and your own – information.
Doing this will also give your customers peace of mind. On the flipside, if you don’t upgrade, it’s possible your users will start getting get spooked by warning indicators in the address bar and navigate away from your page.
The good news is it’s easy to update, you just need to upgrade your SSL certificate! If you’re with UKFast, all new SSL certificates issued by us will be SHA-2, and if you already have an existing one with us it’s free to upgrade from your SHA-1 certificate to a SHA-2 in MyUKFast.
You’ll also need to revalidate and reinstall all domains secured on it, but it’s much better than jeopardising your business and future revenue.
You can watch this video also at the source.