What is a cracker and not the food cracker?

A "cracker" can refer to a person who engages in the act of cracking, such as someone who breaks open something. In a cultural context, it can also describe a derogatory term used in the United States for poor white individuals, particularly in the Southern states. Additionally, "cracker" can denote a type of software or hacker that illegally breaks into computer systems or bypasses software protections.