3rd August 2026
The Bitcoin network itself has never been successfully hacked in the sense that someone has broken the blockchain's encryption. Instead, the biggest risks have shifted to the places where people store, trade or access their cryptocurrency.
The biggest threats today include:
Exchange hacks – Criminals continue to target cryptocurrency exchanges because they hold billions of pounds of customer assets. The record-breaking theft from the Bybit exchange in 2025 showed that even major platforms can be vulnerable if attackers compromise the surrounding systems rather than Bitcoin itself.
Wallet vulnerabilities – Even hardware wallets, long considered the safest option, have recently suffered from security flaws. A recently disclosed vulnerability affected some Coldcard hardware wallets, leading to the theft of around US$50 million worth of Bitcoin from affected devices.
Phishing and scams – Increasingly, criminals don't hack the blockchain at all. They trick people into revealing recovery phrases, approving fake transactions or installing malicious software. AI-generated voice calls and deepfake videos are making these scams more convincing than ever.
State-sponsored hackers – Intelligence agencies believe some of the world's largest crypto thefts have been carried out by highly sophisticated state-backed groups, meaning ordinary exchanges are facing opponents with enormous resources.
Another issue is that the crypto industry has become a much larger target. Criminal activity involving cryptocurrencies rose sharply during 2025, reflecting both the increasing value held in digital assets and the growing sophistication of organised cybercrime.
Looking ahead
There is also a longer-term concern: quantum computing.
Today's Bitcoin cryptography is considered secure against current computers. However, researchers and parts of the crypto industry are already preparing for a future in which powerful quantum computers might be capable of breaking some of today's encryption methods. Most experts believe this is still several years away, and the industry expects to upgrade to quantum-resistant cryptography before it becomes a practical threat.
Should ordinary investors be worried?
If someone keeps:
a small amount of Bitcoin on a reputable exchange,
uses strong passwords,
enables multi-factor authentication,
never shares their recovery phrase,
their biggest risk is probably being scammed, not having Bitcoin itself hacked.
However, anyone with substantial holdings should remember that unlike a bank account, there is generally no government compensation scheme if cryptocurrency is stolen. Once it has been transferred out of your wallet, recovering it is often extremely difficult.
For many people, that is the key issue. Cryptocurrencies may offer attractive returns, but they place much more responsibility for security on the individual than traditional banking does.