Piggybacking

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Piggyback, piggy-back, or piggybacking may mean:

Art, entertainment, and media[edit]

Business, finance, and law[edit]

Electronics[edit]

Healthcare[edit]

Science[edit]

Security[edit]

  • Piggybacking (security), when an authorized person allows (intentionally or unintentionally) others to pass through a secure door

Telecommunications[edit]

Transport[edit]