Sainsbury's Bank bans password storage

Sometimes I’ll admit to being simply lost for words, and this is one such occasion. PC Pro reader Keith sent me an email expressing his concern at the terms and conditions document from Sainsbury’s Bank, which included the following clause: “You must not write down, store (whether encrypted or otherwise) on your computer, or mobile phone handset, your security details, or anything we give or send you about Sainsbury’s Online Banking, our Telephone Service or your account or anything usually kept with them.”