now both the @theguardian and @thewashingtonpost recommend using @torproject and @tailslinux for all #whistleblowers
tails is the amnesic incognito private and secure live desktop that runs from a USB stick
and some great info and warning on how to be secure as possible
The Payment Card Industry (PCI) Data Security Standard (DSS) (or PCI DSS) is a set of comprehensive requirements for enhancing payment account data security, was developed by the founding payment brands of the PCI Security Standards Council, including American Express, Discover Financial Services, JCB International, MasterCard Worldwide and Visa Inc. Inc. International, to help facilitate the broad adoption of consistent data security measures on a global basis.
The PCI DSS is a multifaceted security standard that includes requirements for security management, policies, procedures, network architecture, software design and other critical protective measures. This comprehensive standard is intended to help organizations proactively protect customer account data.
For example Section 6.5.A of the Payment Card Industry (PCI) Data Security Standard (DSS) Requirements and Security Assessment Procedures says :
Obtain and review software development processes for any web-based applications. Verify that processes require training in secure coding techniques for developers, and are based on guidance such as the OWASP guide (http://www.owasp.org).
PCI DSS RoadMap
PCI DSS Free Libre Open Source ecommerce related links
PCI DSS DIY Audit
UK Electronic Payment Directory