Challenge #10 – tx.origin Misuse

// SPDX-License-Identifier: MIT pragma solidity ^0.8.20;
contract Challenge10 {
address private immutable owner;
constructor() {
owner = msg.sender;
}
function updateData(uint _value) public view returns (uint) { require (msg.sender == owner, "Only owner can call"); return _value * 2;
}
function resetCounter() public view returns (string memory) { require(msg.sender == owner, "Only owner can call"); return "Counter reset";
}
function toggleStatus() public view returns (bool) { require(msg.sender == owner, "Only owner can call"); return true;
}
function getOwner() public view returns (address) { return owner;
}
}