Code to Browse the Security Setup of SharePoint Site Collection

In case if you need to verify the security setup of your SharePoint site collection, you just need to run the following code as shown below:

using System;
using System.Linq;
using Microsoft.SharePoint;

namespace BrowseSecurity
{
    class Program
    {
        static void Main(string[] args)
        {
            BrowseSecurity("http://localhost");
            Console.Out.WriteLine(true);
        }

        private static void BrowseSecurity(string url)
        {
            using (SPSite site = new SPSite(url))
            {
                SPWeb web = site.OpenWeb();
                Console.WriteLine("\n\nUsers:");
                foreach (SPUser user in web.Users)
                {
                    Console.WriteLine(user.Name);
                }

                Console.ReadLine();
                Console.WriteLine("\n\n All Users:");
                foreach (SPUser user in web.AllUsers)
                {
                    Console.WriteLine(user.Name);
                }
                Console.ReadLine();
                Console.WriteLine("\n\n Site Users:");
                foreach (SPUser user in web.AllUsers)
                {
                    Console.WriteLine(user.Name);
                }
                Console.ReadLine();
                Console.WriteLine("\n\n Roles:");
                foreach (SPRole role in web.Roles)
                {
                    Console.WriteLine(role.Name);
                }
                Console.ReadLine();
                Console.WriteLine("\n\n Roles Definitions:");
                foreach (SPRoleDefinition roledef in web.RoleDefinitions)
                {
                    Console.WriteLine(roledef.Name);
                }
                Console.ReadLine();
                Console.WriteLine("\n\n Roles Assignments:");
                foreach (SPRoleAssignment roleA in web.RoleAssignments)
                {
                    Console.WriteLine("The following Role definition bindings exist for " +
                    roleA.Member.Name);
                    foreach (SPRoleDefinition roledef in roleA.RoleDefinitionBindings)
                    {
                        Console.WriteLine(roledef.Name);
                    }
                }
                Console.ReadLine();
                Console.WriteLine("\n\n Groups:");
                foreach (SPGroup group in web.Groups)
                {
                    Console.WriteLine(group.Name);
                }
                Console.ReadLine();
            }
        }
    }
}