My 3.2.11 phpbb forum is quite closed (no new subscriptions allowed etc.)
Recently we've got two posts created by registered users with the exact same subject and message.
Titles goes : "@pump_upp - best crypto pumps on telegram !"
If enter this on Google it seems a lot of phpbb forum have been getting the exact same threads created.
Is this issue known ? How can I fix / prevent such posts from happening ?
Thanks for your help