However, it is not a foolproof prevention method that stops gun violence. Even more sophisticated means of detection are used, but none are foolproof. Isolation is the quickest, quietest and most foolproof method of solving "hum" problems. This process can be profitable, but it is not a foolproof mechanism to successful funding. However, Balki has installed multiple firewalls that make his account foolproof. Their study does not aim to present foolproof steganographic schemes. As the plan is sounding foolproof, he decides to give it a try. However, these systems are very expensive to install and although helpful, are not foolproof. It has been claimed that the system is not foolproof. However, his plans are never foolproof and always end with him losing. This time they ask for a foolproof double ransom. The magazine instead recommended the "almost foolproof" Sound Blaster Pro or the original Sound Blaster. The term "foolproof" originates in 1902.