Back in November of 2013, Microsoft released a Security Advisory stating that by January of 2016 Microsoft would no longer allow root authorities to issue certificates using the SHA-1 hashing algorithm. As that date has come and gone, most users probably never even noticed anything happening. This is because browsers were quick to adopt the new changes. E-commerce is part of everyday life and no one wants to buy something from a site that their browser says is insecure. However, SSL certificates are used for many other things, including verifying publishers of software and drivers. This is also known as code signing.