Protected internal is an access modifier that allows members to be accessed by any code in the current assembly or any derived class in another assembly. Access modifiers are used to provide security for applications by restricting access to certain classes, members, or inheritance hierarchies to only certain code. Protected internal allows for access within the current assembly as well as derived classes in other assemblies.

2. • These are used to provide restriction to the
members of a class or class to access in same
class or derived class in same assembly or
different Assembly …etc.
• We are using access modifiers for providing
security of our applications.

3. Protected
internal