What is a major money laundering risk associated with a number of prepaid cards as opposed to credit or debit cards?

Losing the card is a personal financial risk unrelated to money laundering and is not a risk that distinguishes prepaid cards from credit or debit cards in an AML context.

The premise is incorrect - many prepaid cards can be loaded with cash at retail locations, which is actually a core part of the money laundering vulnerability, not a barrier to it.

Global ATM access is a feature shared by many card types including standard debit cards and does not represent a distinguishing money laundering risk unique to prepaid cards.

Prepaid cards are frequently sold without requiring identity verification, enabling users to load and spend funds without the financial institution knowing who the true account holder is. This anonymity severs the audit trail that AML programs rely on, making prepaid cards a preferred instrument for layering and placing illicit funds.