# Linking Inputs in Transactions
Some linking is still unavoidable with multi-input transactions, which necessarily reveal that their inputs were owned by the same owner.
\- Satoshi Nakamoto, Bitcoin Whitepaper
Despite the privacy measures in place, some linking is unavoidable in **multi-input transactions**. When a user creates a transaction that aggregates multiple inputs to produce a larger output, it becomes **possible to trace the coins back to a single owner**. While the public ledger does not explicitly identify the owner, knowledgeable observers can **infer ownership based on the inputs used** in the transaction.
To mitigate this risk, users can adopt strategies such as ensuring that they always spend a larger output than the payment itself. However, this is not always feasible, and there are instances where aggregating coins is necessary. Therefore, users must remain vigilant and employ best practices to protect their privacy.
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