I presume you've done it already, but the whois of that IP address says it is effectively one person.
So either they were hacked or they did it:
inetnum: 79.172.242.0 - 79.172.242.255
netname: WEBENLET-NET
descr: Webenlet Kft.
descr: 1131 Budapest, Hajdu koz 7.
country: HU
admin-c: ZV41-RIPE
tech-c: ZV41-RIPE
status: ASSIGNED PA
mnt-by: DENINET-MNT
source: RIPE # Filtered
person: Zoltan Virag
address: H-1132 Budapest, Victor Hugo u. 18-22.
address: HU
phone: +3612960075
fax-no: +3612960076
nic-hdl: ZV41-RIPE
e-mail: ripe@deninet.hu
mnt-by: DENINET-MNT
remarks: ---------------------------------------------
remarks: Please send all abuse and spam complaints to:
remarks: abuse@deninet.hu
remarks: ---------------------------------------------
source: RIPE # Filtered