Stage hypnotists have created many misconceptions about hypnosis, especially the belief that a hypnotist can place you in a trance, and make you do things against your will. This is a fallacy.
When a person is in a hypnotic trance they are fully aware of what is being said to them, and what they are being asked to do, and it is not possible to make someone do anything they don’t want to do. You have as much free will in hypnosis as you do when you are fully conscious.
If a person is so deeply relaxed that they feel as if they are drifting off to sleep, they can be assured that their subconscious mind is still awake. The subconscious mind is always awake, and is the body’s protector. The subconscious mind will never reveal any information which the person wishes to keep secret.
It is not possible to remain in a hypnotic state for longer than you wish to. You can exit hypnosis whenever you want to, simply by counting slowly from 1 – 5, and if the internet link is cut during an online hypnosis session you will awake naturally, just as you would from normal sleep.