cracker

A cracker is someone who breaks into computers or websites without permission. They try to access information like passwords, financial information, or personal information without permission. It is kind of like a thief, except they do it in a computer instead of in a physical place. They can use special programs called "cracking software" to do this. It is against the law to be a cracker, so it is important to keep your computer and website secure so crackers can't get access.