Blackberry 10 OS certificates
If you’re one of those people that still use Blackberry phones with BB10 OS (for good reasons, they are still amazing phones), you’ll notice that it’s impossible to connect to some HTTPS websites because the DST Root CA X3
certificate expired. Download the ISRG Root X1
in pem format, copy it to your Blackberry phone, tap on it and install it. After that, go into Settings -> Security and Privacy -> Certificates, scroll down, select the DST Root CA X3
certificate and uncheck the Trusted box.