1. Publish and impose a sensible Time Granularity. One which is at least equal to the longest known information delay.

2. Insert a (Regulator Auditable) random delay facility into the matching queue process.

3. Random-length delays (between a half and one full Time Granularity Period) are added to ALL offers made into the Matching Queue PRIOR TO ANY MATCHING, AND to any and all cancellation requests received PRIOR TO CANCELLATION BEING IMPLEMENTED.

4. In other words, nothing in the matching queue can be removed until its cancellation delay period has elapsed.

5. PROHIBIT all matches except those whish pass through the restructured matching queue INCLUDING trades conducted by the exchange itself..

If, therefore, there was a known "satellite delay" of 2 seconds (and this was the longest delay known in the overall betting process), random delays of between 1 and 2 seconds would be added to all offers added to the Matching queue. And in the event of all cancellation requests received, a similar ADDITIONAL random delay of between 1 and 2 seconds would be added BEFORE the cancellation is verified. Until that cancellation delay has elapsed, any and all offers can be matched as originally offered.

*** Note that the combined delay for any Client wanting to offer then CANCEL, is greater than the observable, longest information delay ***

The exchange CANNOT now conduct "Zero Risk" matching of offers to abstract "free money" from bid/offer inefficiencies, and the Betting Efficiency (for Clients) rises noticeably.

N.B. Removal of this aspect of Time Fraud would NOT be popular amongs either SPIVS (cheats) or "traders" who DEPEND upon advantageous Timing differentials for their abstractions!

Just because THEY don't like such ideas DOESN'T mean they can't work effectively for the greater Benefit......