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UK guide · Updated 2 November 2026Is Bitcoin safe?
There are two questions here. Is the Bitcoin network safe? And are you safe using it? The honest answer is that the network has a strong record, and most losses happen to people, not to Bitcoin itself.
Not financial advice. This page explains risks. It does not tell you whether to buy. The FCA warns that you should be prepared to lose all the money you put into crypto (see FCA: Crypto basics (InvestSmart)).
Has Bitcoin itself been hacked?
The Bitcoin network has run since 2009 without anyone breaking its core cryptography: nobody has taken coins from an address without its private key. It has had software bugs. The worst, in 2010, briefly created coins out of thin air and was fixed within hours. Since then the network has kept running. What does get hacked is everything around it: exchanges, apps, email accounts and people. See our record of exchange hacks.
The real risks
- Scams: the biggest risk for most people. Fake investments, fake support and romance scams.
- Exchange failure: if a platform holding your coins is hacked or goes bust, you may lose them. Most crypto has no FSCS cover.
- Losing your recovery words: if you hold your own keys and lose the words and the device, nobody can restore your coins.
- Price swings: the price can fall a long way, fast, and stay down for years.
- Mistakes: sending to the wrong address cannot be undone.
How to reduce each risk
- Scams: never share your recovery words, ignore unsolicited offers, check firms on the FCA Financial Services Register. See Avoiding scams.
- Exchange failure: consider holding your own keys. Our self-custody guide explains the trade off.
- Lost words: write them on paper or metal, store them safely, never photograph them. See Seed phrases and backups.
- Price swings: only use money you could afford to lose and would not need for years.
- Mistakes: send a small test first and check the address on screen.
What about quantum computers?
Short answer: not a threat today. Today's quantum computers are far too small to break Bitcoin's cryptography, and the network can upgrade if that changes. Watch our quantum explainer and read Bitcoin myths.
Verdict
The Bitcoin network itself has proven very hard to attack. Your safety depends mostly on your own habits: how you buy, where you keep your coins, and how you protect your recovery words. It is still a high risk, volatile asset, and whether it suits you is your decision. Test what you know with the quiz.
Key takeaways
- Bitcoin's core cryptography has never been broken. Exchanges and people get hacked.
- Scams are the biggest risk for most people.
- Protect your recovery words and consider holding your own keys.
- Prices swing hard. Only use money you can afford to lose.
Official sources
Checked 2 November 2026. Rules change, so always check the latest version.
Not financial advice. General education only. Bitcoin prices can swing hard. Never put in more than you can afford to lose, and do your own research.