Help! All data in mybook live gone and owner password unknown

I agree with you. No firmware update today by anybody.
Mine is still showing:
My Book Live Firmware

Version:MyBookLive 02.43.10-048 : Core F/W

Last Update:Tue 23 Jun 2015 03:36:19 AM PDT
So what the hell is going on here? Why all the data was gone?