In the case of transport companies, theft is most often associated with the loss of transported goods. This is not the only problem. In the era of constantly rising fuel prices, it has also become a valuable asset. Despite the risk, fuel theft is a daily bread, especially on international long journeys. Drivers are becoming more and more inventive. And although such practices are extremely risky, for most of them the game is worth the candle: the reward in the form of a bonus for the lack of “blows”, the envy of colleagues and recognition in the eyes of the boss. Unfortunately, it is just the way it is that where some people gain, others have to lose. How to prevent it? The only way out is to effectively secure the fuel tank.