1. Research the seller through their Stratics profile, view threads they have traded in and the responses of their trading partners. 2. Contact previous trading partners via pm and request a reference. 3. Always trade in a secure environment, ie a Trammel town - not fel and not a private house. 4. If possible use an npc vendor. 5. If using a broker ensure it is someone you trust. Be in contact with the broker through another medium to verify their identity. Brokers can be impersonated. If anyone has anything to add to this list I will edit it in. Please keep posts factual and free from personal feelings and opinions of particular individuals.