yahoo id theft

dear sir/ madam

i was wondering if u could help me out here. my yahoo ids (all of them ) have been hacked. i came to realize wen i started getting message wenever i logged in and just today my friend called me to tell me that i was online and he could not talk to me for a long time , when i informed him that i did not even went online at all. so please if u could help me out here to identify or to report this user as a danger that would be great. thanking u in advance.

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Blab-away for as little as 1