Usenet/newsgroups (Google Groups) is so hacked

Messages with the subject Usenet/newsgroups (Google Groups) is so hacked appeared in the following groups:

alt.astronomy

( Messages)

soc.history.what-if

( Messages)

sci.space.policy

( Messages)

sci.space.history

( Messages)

alt.astronomy

( Messages)

sci.space.history

( Messages)

sci.space.policy

( Messages)

soc.history.what-if

( Messages)

alt.astronomy

( Messages)

sci.space.history

( Messages)

sci.space.policy

( Messages)

soc.history.what-if

( Messages)

soc.history.what-if

( Messages)

sci.space.policy

( Messages)

sci.space.history

( Messages)

alt.astronomy

( Messages)