A trapdoor is a hidden piece of code that responds to a special
input, allowing its user access to resources without passing through the normal
security enforcement mechanism.
Time of Introduction
Architecture and Design
Implementation
Operation
Potential Mitigations
Phase
Description
Always verify the integrity of the software that is being
installed.
Identify and closely inspect the conditions for entering privileged
areas of the code, especially those related to authentication, process
invocation, and network communications.