awk

Why are people from China trying to login to my computer? I don't understand....

for i in `cat auth.log.1 | awk '{print $13}'|sort -n |uniq`; do whois $i |grep person; done
person: Chyi-Chuan Yang
person: Seednet Seednet
person: Haibo Ma
person: Ruixin Wang
person: Haibo Ma
person: Ruixin Wang
person: ChinaUnicom Hostmaster
person: Wei Wang