| Title | Simple replay attack protection |
| Author | Vitalik Buterin |
| Status | Final |
| Created | 2016-10-14 |
| Description | http://eips.ethereum.org/EIPS/eip-155 |
| Specification | http://eips.ethereum.org/EIPS/eip-155#Specification |
| Category | core |
Address the problems with Spurious Dragon causing a Hard Fork.