Michael TsaiVerified account

@mjtsai @siracusa Calling certificate-signed software "planned obsolescence" is reductive and entirely ignores the security angles.

@pmod What exactly is the security angle here?

@mjtsai Code signing with expiring certs? Have you not yet considered that some of the recent hiccups are related to compromised certs??

@pmod In what scenario would it be beneficial securitywise for Apple to disable their own installers that users downloaded from their store?

@mjtsai Because they had to retire a compromised certificate??

@pmod Sorry, not following you. Which certificate do you think was compromised? And how could that endanger the installer I already have?

@mjtsai Contemporary cert validation is a security feature, yeah?

@mjtsai @siracusa what does this mean for those of us with collections of old versions of the OS?

@bartdorsey You'll need to redownload them or possibly change your clock when installing.

@mjtsai Can you still download things like Lion?