Which is an example of a security seal?

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Security seals are tamper-evident devices used to show whether access has occurred. A lead and wire seal is a classic tamper-evident mechanism: you secure a wire through a closure and crimp it with lead, so removing it clearly breaks the seal and signals tampering. A permanent pressure-sensitive seal is a sticker or band that, once applied, must be broken or permanently deformed to open, leaving evidence of tampering. Both of these are true security seals because they provide a verifiable indication if the protected item has been accessed. In contrast, a label placed on a device by a security form is typically just an identifier or protective note, not a tamper-evident seal. Therefore, the example that represents security seals is the option that includes both a lead and wire seal and a permanent pressure-sensitive seal.