Áine,
I appreciate that a "reds under the bed" sensation often follows ones first reading of the a.s.t. FAQ but I didn't post it to worry people.
I do not believe there's a concerted attack taking place, the mudcat forum wouldn't be a worthy target for a.s.t or their like.
However the FAQ outlines the frailty of virtual communities, and has good pointers for protective measures.

AndyG