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Implement Strong Access Control Measures

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Access control allows merchants to permit or deny the use of physical or technical means to access PAN and other cardholder data. Access must be granted on a business need-to-know basis. Physical access control entails the use of locks or restricted access to paper-based cardholder records or system hardware. Logical access control permits or denies use of PIN entry devices, a wireless network, PCs and other devices. It also controls access to digital files containing cardholder data.