All stemming from them not keeping up with technology and failing to patch a world-known vulnerability!
more here...........https://webcache.googleusercontent.com/search?q=cache:I8s8KmZhwXMJ:www.futuresouth.us/yahoo_hacked.html+&cd=1&hl=en&ct=clnk&client=firefox-a
more here...........https://webcache.googleusercontent.com/search?q=cache:I8s8KmZhwXMJ:www.futuresouth.us/yahoo_hacked.html+&cd=1&hl=en&ct=clnk&client=firefox-a