One of the moves that Kasparov accused was made by human (The bishop move if I remember right) was done by Deep Blue after a long thought but today, even a smart phone can come up with that move in few seconds.
Interestingly enough IBM for few years declined to release the logs of computer lines (especially for that moves) however I used to work at IBM and had access to the research logs. It was just mundane lines with this Bishop move as most promising line. IBM did later release the logs
Modern chess engines like Stockfish running on our phones are much more power than Deep Blue with both hardware and software improvements.