We are continually warned to install PC protection, keep it up to date and set Windows to install critical patches. I do all this and more. My friends think me boringly over-aware of internet dangers. But I have twice recently had nasty wake-up calls. I noticed some ￡8 monthly withdrawals from my credit card, identified as 'Shopdisc'. Initially I put this down to CDs and DVDs bought through Amazon from third-party suppliers. But during some months I had bought no discs. I typed 'Shopdisc' into Google and found many posts from people who were paying ￡8 a month, usually after buying flowers or printed cards. But I hadn't bought any flowers or cards. The credit card entries gave a number, which turned out to be a phone number for 'shopperdiscountsandrewards'.
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