no one said it was a backdoor, though. you have to have a key to encrypt stuff, and it was that key which got leaked, somehow. a backdoor is a way around the use of a key to see secret messages, or an alternate key which allows you to view messages without compromising the key which encrypts messages in normal operation.
could have been a backdoor, sure, could have been something else. could have been carelessness. could have been blackmail. could have been a rogue employee. could have been malware, spear fishing, or any one of a hundred other things.
did I miss something or are you premature in blaming this on a backdoor?
They didn't say it was an intentional backdoor. But if it were, the result would be the same.
It's hard to secure encryption keys. If you had a backdoor based on a key that you had to keep secret, leaks like these can happen. If Microsoft (or anyone) can't keep their encryption keys secure, they'd be equally unable to keep a backdoor key secure for the same reason.
could have been a backdoor, sure, could have been something else. could have been carelessness. could have been blackmail. could have been a rogue employee. could have been malware, spear fishing, or any one of a hundred other things.
did I miss something or are you premature in blaming this on a backdoor?