Internet surfers may take that little green or gold lock in the corner of their Web browser for granted. But starting Jan. 1, 2016, it might go away for a small percentage of people across the globe, and millions of users could lose access to websites because of it. It's all to do with the "SHA-1 Sunset," a phrase used by technology insiders to describe the expiration of support for a certain level of encryption. Over the next year, the algorithms older than SHA-1 level of encryption will no longer meet the trusted level of security for many websites, leaving as many as 37 million people unable to access them, ... (full story)