With the phone-hacking scandal still playing out in the courts, it should be safe to assume that UK mobile operators have put measures in place protect customers’ own voicemail inboxes. Unfortunately, that’s only half true. An investigation by The Register showed that two of the big four carriers had neglected to close a loophole that allows nefarious third-parties to spoof a customer’s phone number and immediately gain access to their voicemails. Those two companies? EE and Three.