What is with these threats from Microsoft

I have the same problem, why nobody from Microsoft support cant see this threat and do something about it?

No one from Microsoft will ever send you a warning or a threat about activity on your account. If someone sent you a message saying the work for Microsoft or Xbox LIVE, it's a lie.

If see hackers on Xbox live call microsoft if someones threating you call microsoft or call the police they will come to ur house and ask you questions and then they will take the threating persons xbox away like my friend
[Mod Removed] he is threating me to kill me so I called Microsoft 1800-642-7676

Report and block them.

Microsoft will check their records for indications of hacking and if they find evidence, they will act on it. As Undeadfire stated, not everyone that says they hacked, actually did. Most people can't hack. Hacking another account to find their password,
usually the account owner reports their stolen account to Microsoft.

Microsoft does not take threats lightly. Depending on what the threat was and how much Microsoft believes the person can do it will determine what Microsoft does. At the very least, Microsoft can get them on threatening another player or what is called,
cyber-bullying/cyber-abuse. Microsoft is good at acting on these things and will insure your Xbox LIVE experience is enjoyable.

Never be afraid to report.

This is ***! The Christmas threat by Lizard Squad was a valid one. Xbox and Playstation are down. Mr. Bill Gates had a threat given weeks ago that this was going to happen, but NOTHING prevented it on Microsofts end. Here is how I'm going to deal with
it.....I'm returning my now useless brand new Xbox ONE, and I'm canceling my Xbox Live for a full refund. Oh, and I will be playing PUTS on Microsoft stock options. I've gone from being extremely *** off at the hackers to being *** off at the incompetence
of Microsofts apparent inability to prevent this crap from happening repeatedly. What's the difference from the hackers shutting down Xbox Live and making gaming experience non-existent, to someone stealing your vehicle and not being able to get anywhere?