When a hardware system is protected by a 4 digits password, what is the advantage of the attacker into breaking that system?
Isn't it $2^{10}*2^{10}*2^{10}*2^{10}=2^{40}$$10*10*10*10=10^{4}$? If $\frac{1}{2^{40}}$$\frac{1}{10^{4}}$ is the $\textit{Adv}$cost of the attackersuch an attack then is this reasonable computation for the attacker? In my eyes this seems like a simple brute force attack for 4 numbers. I mean is super easy. Isn't it?