Someone just illegally transferred my 0.099 ETH from my MetaMask Wallet to 0x532951294BCF47377c49dd5AF2D8dB86ccaBA517 without my authorisation. How Can I reverse this?

https://etherscan.io/tx/0x4d6b9a5d2e45162952339bf9a00a8707ad6143eb1ef802fcb7471635316659b7
https://etherscan.io/block/4975893