A recent branch of cryptography focuses on the physical constraints that a real-life cryptographic device must face, and attempts to exploit these constraints to expose the devices secrets. This gave birth to implementation-specific attacks, which often turned out to be much more efficient than the best known cryptanalytic attacks against the underlying primitive as an idealized object. This talk aims to review some of the physical weaknesses of present technologies and to discuss how future technological scalings may affect these physical security issues.