Back in November, let’s wrap up warned that older Android phones stuck on 7.1.1 Nougat or earlier will not be able to visit large parts of the secure web by September 2021. Now, the non-profit CA has ad that it has found a solution to the problem which will extend the compatibility of older Android phones with its certificates by three years.
Let’s Encrypt relies on IdenTrust, another certificate authority, for cross-signing which allows its certificates to work on older platforms. Unfortunately, the IdenTrust root certificate behind this capability will expire next year. That’s a big deal, he noted, as 33.8% of Android users on Google Play are still using versions of Android prior to 7.1. According to University of Michigan, Let’s Encrypt is the largest certification authority in the world, which has doubled the number of secure websites by providing free service and making the implementation of HTTPS much easier. In February of this year, the non-profit organization revealed that he issued his billionth certificate.