Minecraft 1.5.2 Xray Link -

But without active anti-cheat, bans were reactive, not preventive.

In Minecraft 1.5.2, X-ray was . The primary methods were texture pack transparency (vanilla) and modded clients (Nodus, etc.). Anti-cheat was in its infancy, so X-ray gave users a massive advantage in multiplayer. Today, these exact techniques no longer work on modern servers, but they defined an era of Minecraft hacking and server administration. minecraft 1.5.2 xray

For educational & historical understanding only. But without active anti-cheat, bans were reactive, not