Learn in the textbookFundamentals of Information Security and the Information Assets to Protect
DefinitionCracking (クラッキング) is the act of breaking into someone else's computer or system without permission and with malicious intent, then snooping on, destroying, or altering information.
ExplanationAmong cyberattacks, it refers to getting inside a system without authorization to do harm, and the person who does it is called a cracker. The way in is often an easily guessed password or an unpatched weakness in software.
AnalogyForcing a lock to get into someone's house, then stealing things or wrecking the rooms.
Memory hookThe English verb crack means to split or break open. A safe burglar is called a safecracker.