theCyber — 2019 Update

How many Solidity developers managed to crack theCyber?

theCyber — The new GateKeeperTwo

TheCyber GateKeeper 2

theCyber — Facing the closed door of theCyberGatekeeper contract

A technical walkthrough with theCyber Smart Contract

theCyber — A secret society on the Ethereum blockchain?



In a recent post , Vitalik Buterin mentioned the need to ‘split’ Ether funds in order to prevent replay attacks and pointed to a splitter contract. While this splitter contract has been verified and works fine, it leaves room for user errors as some unfortunately discovered by loosing some of their funds. I feel very sorry for the users who ran into this issue and I decided to improve the existing solution.