How to Protect your Server from Steam ID Changer?

1. Open dproto.cfg and search steamidhashsalt

2. Put steamidhashsalt [if hacker set the steam id then it will change steam id].
(Salt string for SteamIDs hashing. Irreversibly changes Steam IDs. Applies only to Steam IDs generated by Emulators. It should be more than 16 chars length. If string is empty, hashing is not applied.)

Ex :

SteamIDHashSalt = avbd26ja22gra1ma