Safeguarding hardware from cyberattack. Researchers have developed an algorithm that safeguards hardware from attacks designed to steal data. In the attacks, hackers detect variations of power and electromagnetic radiation in an electronic device's hardware and use the variation to steal encrypted information. Source 1d.
We know that the newer technology will eventually prevent problems like this, but the things is hackers will always find some kind of bug or vulnerability that is unseen for exploitation. All things must have some sort of weakness no matter how precise you are.