Replay Attacks Explained

Originally published at BitcoinTechTalk.This piece is re-published at Crypto Insider to combat the spread of misinformation and shed some light on contemporary crypto-politics.
Segwit2x has garnered some controversy over the fact that it will not have replay protection. In this article, I’m going to explain what a replay attack is and how it will affect the upcoming 2x hard fork.
Bitcoin Transactions
In order to understand what a replay attack is, we first have to understand how a bitcoin