Book excerpt: This IBM® Redbooks® publication will help you install, configure, and use the new IBM Fibre Channel Endpoint Security function. The focus of this publication is about securing the connection between an IBM DS8900F and the IBM z15TM. The solution is delivered with two levels of link security supported: support for link authentication on Fibre Channel links and support for link encryption of data in flight (which also includes link authentication). This solution is targeted for clients needing to adhere to Payment Card Industry (PCI) or other emerging data security standards, and those who are seeking to reduce or eliminate insider threats regarding unauthorized access to data.