How do people move money offshore (more than allowed) without getting caught? And does it mean that they can only use that money offshore?

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For example, you need to understand the nuances of tax (fiscal) residency as it relates to you, your business, and any other structures you have. You also need to know the specific tax implications of your personal citizenship and residency, which you can find out here https://www.offshorecorptalk.com/. In some cases, depending on your citizenship, you may never be able to eliminate your personal tax burden.

How do people move money offshore (more than allowed) without getting caught? And does it mean that they can only use that money offshore?