In the maritime business, Automated Identification Systems (AIS) are a big deal. They supplement information received by the marine radar system, are used for a wide variety of things - including ship-to-ship communication - and are relied upon each and every day. Unfortunately, the AIS can also be easily hacked in order to do some real damage, claims a group of researchers presenting at the Hack In The Box Conference currently taking place in Kuala Lumpur.