ETHEREUM_PRIVATE_KEY leaked via github

ETHEREUM_PRIVATE_KEY It is used to sign Ethereum transactions on the Blockchain. ## Steps To Reproduce: Open this url https://github.com/Sifchain/sifnode/blob/f96727748e1f44926d3bd72b1021f6c2461dee17/test/integration/start-integration-env.sh * POC - screenshot attached ## Impact It shouldn’t be publicly shared because whoever owns the Private keys can access the funds for that address. -Private keys are used to create Public addresses using SHA256 hash function.