Part 2: Understanding Crypto

How blockchain works in simple terms

Think of the blockchain as a giant shared notebook that thousands of computers around the world keep a copy of. Every time someone sends or receives cryptocurrency, that transaction is written into the notebook. Once written, it cannot be erased or changed.

There is no single bank or company running this notebook. It's maintained by a network of computers (called "nodes") that all agree on what the record should say. This is what people mean when they say crypto is "decentralised."

Bitcoin vs Altcoins vs Stablecoins

• Bitcoin is the original cryptocurrency — most well-known and most valuable.
• Altcoins are all other cryptocurrencies. Some are well-established (like Ethereum); others are small and experimental.
• Stablecoins are tied to a real-world currency like the US dollar, so their value stays steady.

Red flags — scams to watch for

A. Tech support scam involving crypto

Scammers pose as tech support agents from well-known companies like Microsoft or Apple, claiming your computer has been hacked. They walk you through a fake "fix" then say there's a charge payable in cryptocurrency. This is always a scam. No legitimate tech company will ever ask for payment in crypto.

B. Romance scam with crypto requests

Scammers create fake online profiles and build emotional relationships over time. Once trust is established, they invent a crisis and ask for financial help in cryptocurrency.

Leaving crypto to your heirs

If your heirs don't have your private key or seed phrase, the crypto is lost forever. Document your crypto holdings and access details as part of your estate planning, and store them securely — in a sealed envelope with your solicitor or in a home safe.