It is almost certainly illegal in various countries already. By using such prompts you are bypassing security to get "data" you are not authorized to access.
Law-makers wanted to outlaw all kinds "hacking" even involving future technology. If people were prosecuted for jail-breaking ChatGPT, that would probably be within the intention of the makers of these laws.
Fun fact: The US hacking law, CFAA, was inspired by the 1983 movie War Games, in which an out-of-control AI almost starts a nuclear war. If you travelled back in time, and told them that people will trick AIs to answer questions on bomb-making, they'd probably add the death penalty. In fact, if reactions to AI in this Technology community are any guide, they might still get around to that.
I don't know... In America they're currently rolling back rights for women, inserted religion into supreme court decisions, and are seriously debating a second term of Trump.
None of that makes any fucking sense. If it requires elaborate mental hoops, they'll find it.