The headline is misleading. It says that Microsoft will provide the key if asked, but the linked statement to Forbes says Microsoft will provide the key if it receives a valid legal order.
These have different meanings. Microsoft is legally entitled to refuse a request from law enforcement, and subject to criminal penalties if it refuses a valid legal order.
It does illustrate a significant vulnerability in that Microsoft has access to user keys by default. The public cannot be sure that Microsoft employees or criminals are unable to access those keys.
These have different meanings. Microsoft is legally entitled to refuse a request from law enforcement, and subject to criminal penalties if it refuses a valid legal order.
It does illustrate a significant vulnerability in that Microsoft has access to user keys by default. The public cannot be sure that Microsoft employees or criminals are unable to access those keys.