The PCI Secure Software Typical defines security needs for software sellers and builders making sure that payment software is securely created and managed, and the integrity of payment transactions as well as the confidentiality of payment knowledge that is stored, processed, or transmitted in association with payment transactions is protected. https://www.diigo.com/item/note/b3v7j/vobr?k=d8743fa39e16387d6e196e18093a57f7