Once on the SagePay system, all sensitive data is secured using the same internationally recognised 256-bit encryption standards used by, among others, the US Government. The encryption keys are held on state-of-the-art, tamper proof systems in the same family as those used to secure VeriSign's Global Root certificate, making them all but impossible to extract. The data they hold is extremely secure and they are regularly audited by the banks and banking authorities to ensure it remains so. en}From Melin Tregwynt to Melin Teifi: The Ultimate Guide to Visiting Today’s Working Welsh Woollen Mills{:}{:cy}O Felin Tregwynt i Felin Teifi: Y Canllaw Gorau Posib ar Ymweld â’r Melinau Gwlân sy’n Gweithio Heddiw yng Nghymru{:} Lay thepattern pieceson to your chosen felt colours and cut out. (You can pin them on first if you like but I didn’t find it necessary.)