How do I set up an ATA?

Could you please elaborate on the steps involved in setting up an Automatic Token Allocation (ATA) for a cryptocurrency project? As a finance professional, I'm interested in understanding the process from start to finish. Specifically, I'd like to know about the prerequisites, the platform or tools needed, and the detailed steps to configure the ATA. Additionally, are there any security considerations I should be aware of? Understanding this will help me ensure a smooth and secure allocation process for my upcoming token launch.