The document provides rules for secure coding practices in four areas: injection prevention, authentication, sensitive data handling, and access control. For injection prevention, it recommends validating user input, using safe parameterized APIs, and escaping data. For authentication, it lists rules like strong password policies, secure storage and transmission of passwords, and limiting failed login attempts. For sensitive data, it advises classifying and encrypting sensitive information. For access control, it suggests dividing software into security roles and enforcing access checks on the server-side.