Being offered vouchers from retailers

This is not so much a security issue, as a spam issue. This is something you can get sucked into, and you become the spammer.

There is, and it comes in many different guises and e-mail that tells you that if you e-mail all your friends and e-mail a specific e-mail address, you will receive $250 worth of vouchers from a main street retailer. Not only that, but your friends, should they e-mail it, will ALSO receive these vouchers. The reason you have to send it to someone specific is so they know who send the e-mail. It's claimed that the reason you will receive these vouchers is because you are involved in advertising for both parties.

THIS IS A CROCK! A full blown e-mail advertising campaign wouldn't cost as much as they claim to be giving. The commonest e-mail going around at the moment involved Marks and Spencers (a reputable british retailer) and Persimmony Homes (I think that's their name anyway). So they ask that you send the e-mail to your friends and to, for example sean@persimmony and that Sean will get in touch to arrange your vouchers for you.

So not only are you spamming your friends, you are spamming poor Sean, who is inundated with all the e-mails.

Again, common sense, it's a very valuabe commodity, and it should be used a whole lot more!