Spies

From Astro Empires Wiki

Spies are people that will be in a guild and give information to the enemy (usually in war time) of attack plans, weaknesses, etc. Sometimes spies are long-time members of the guild they are spying on but have gained a motive for helping the enemy, but more commonly they are just a player sent in the enemy guild when information is needed. They usualy get information about Srtong holds, Jumpgates whats in a fleet,etc.

It is virtually impossible to discover spies in a guild. Oftentimes leading to paranoia. One solution that was suggested is to have a players former guild shown on his profile.