I got a message from myself that I didnt send

I got a message from myself that i didnt send, from my primary account on xbox to another account i have. Is that a hacker or what, and how do i fix that if need be?

The message read:
From Akin Soup which is my primary account, to myself on sweller account, (primary i let my nephew play), said:
Hey if you want free microsoft points go to http//freemspgen.info it actually worked!!!

So, what do i do? Or who do I contact, I contacted xbox live support and they werent sure, but they checked my account on microsoft,

thanks joe

I got a message that was similar but not from myself. My advice is dont answer, dont go to the site and contact XboX live support immediately and explain the situation.

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