==== Use of tx.origin ==== SWC ID: 111 Severity: Medium Contract: Unknown Function name: transferOwnership(address) PC address: 317 Estimated Gas Usage: 626 - 1051 Use of tx.origin is deprecated. The smart contract retrieves the transaction origin (tx.origin) using msg.origin. Use of msg.origin is deprecated and the instruction may be removed in the future. Use msg.sender instead. See also: https://solidity.readthedocs.io/en/develop/security-considerations.html#tx-origin --------------------