On: How to gain code execution on hundreds of millions of people and popular apps

[ameliaquining]

Certificate expiration isn't an unanticipated regression. You know when you get a certificate when it will expire.

[hyperdimension → ameliaquining]

I don't mean to be pedantic, but not always--see the recent DigiCert delayed revocation issues. I will admit it is rare though and more often than not, you (should) know when your certs are going to expire.