Maybe internet security is the wrong term. But you know the types of threads I mean - posters saying they have no money, can't feed their kids, are going without so their kids can eat, have a sick relative in hospital and can't afford transport, can't buy Christmas presents etc etc. Not referring to any particular thread but these pop up a lot, especially in the run up to Christmas.
Now, it's lovely in a way that so many kind hearted people jump in with offers of help, financial support or offers to post items to the OP. I'm sure in some cases, the distress or financial crisis is 100% genuine. But we all know that there are people out there who know what a lovely crowd Mumsnetters are and try to take advantage of that for their own gains.
MNHQ do put a warning out, which is mainly ignored. What on earth can be done by the community as a whole to stop people being so bloody gullible???