Directory permission for the entire domain

Question

I am trying to create a folder and assign it read permissions:

public static void createFolder(string path) {
    DirectorySecurity securityRules = new DirectorySecurity();
    securityRules.AddAccessRule(new FileSystemAccessRule(@"EMPRESA\account1", FileSystemRights.Read, AccessControlType.Allow));
    Directory.CreateDirectory(path, securityRules);
}

I would like to allow access to that folder for any domain login. How should I leave the @Dominio\usuarios to do this?

Grateful!