Following is a collection of references we found helpful with the Credential Management Lifecycle education and training.
ICANN Alert Regarding Published Attacks on the DNS
Center for Internet Security CIS Controls
ISO/IEC 27002:2013 Information technology -- Security techniques -- Code of practice for information security controls
ISO/IEC 27001:2013 Information technology -- Security techniques -- Information security management systems -- Requirements
Payment Card Industry (PCI) Data Security Standard  Requirements and Security Assessment Procedures Version 3.2.1
SAC040 Measures to Protect Domain Registration Service Against Exploitation or Misuse
SAC044 A Registrants Guide to Protecting Domain Name Registration Accounts
SAC074 SSAC Advisory on Registrant Protection: Best Practices for Preserving Security and Stability in the Credential Management Lifecycle