> An iPhone gets updated certificates every time iOS is updated. No you get updated certs from cert-authorities (the one's trusted by apple/google/mozilla etc)

> An iPhone gets updated certificates every time iOS is updated. No you get updated certs from cert-authorities (the one's trusted by apple/google/mozilla etc), the ones who "signed" the received certs from website X. Otherwise you would have to download gigabytes of certificates. https://www.youtube.com/watch?v=86cQJ0MMses https://www.youtube.com/watch?v=86cQJ0MMses >>TLS Handshake Explained - Computerphile