EIP 214 introduces a new opcode to the EVM named staticcall. It is a variant of the call operation with an added security property: It allows your contract to call another contract while disallowing state changes. If the called contract
Back in April of 2017, the Golem Project published a blog post about the discovery a security bug affecting some exchanges such as Poloniex. According to the post, when certain exchanges processed transactions of ERC20 tokens, input validation was not
If you’re looking to get your feet wet in Ethereum or test out a new contract that you’re developing, you may choose to run your own private network. This can be done rather than using one of Ethereum’s public testnets.