Title: Review suppress unmanaged code security usage

Description:

This attribute is primarily used to increase performance; however, the performance gains come with significant security risks. If you place the attribute on public members that call native methods, the callers in the call stack (other than the immediate caller) do not need unmanaged code permission to execute unmanaged code. Depending on the public member's actions and input handling, it might allow untrustworthy callers to access functionality normally restricted to trustworthy code.

Dependency: None

Notes:

CAS is deprecated