Please read IridiumCoin tread to better understand game idea and IridiumCoin.

printscreen from game designer:

This is IRI transporter. This big ship is heavy armored, mobile treasury..
Purpose of ship is fast transport of IridiumCoins from one planet to another.
When ship arive to planet, coin-packs are distributed between local banks and exchanges

Commonly, IRI transporter have a strong guard fleet in front and behind the ship.
Mission of the guard fleet is to protect precious cargo from attackers.

If your clan have a powerful weapon, experience and sophisticated hacking-device,
you can try to attack convoy, and seize coins from IRI transporter.
Storage can contain maximum 1,000 IRI