I received a text on my cellphone today (which I didn't think was associated with any of my microsoft accounts) from number 776-836: Verification Code: 3493 - with no way to reply or find out what the code was for.  I'm worried someone is attempting to hack my accounts.  Please advise.

Hi,

>> I'm worried someone is attempting to hack my accounts.

Just ignore this message.

Neither Microsoft nor our partners make unsolicited phone calls (also known as cold calls) about your computer security or software fixes.

For detailed information, please refer to the link below,

Avoid tech support phone scams

http://www.microsoft.com/security/online-privacy/avoid-phone-scams.aspx

Best Regards.