$BTC is considered the 'safest network in the world.'
However, there is a technical detail that is not often discussed – and it could be crucial in the coming years.
🔍 A fact that will surprise you:
Approximately 6.5 million BTC (about 25% of supply) are located at addresses whose public key has already been revealed.
And why is this a problem?
🧠 Quantum computers
Current Bitcoin encryption (ECDSA) is safe for classical computers
Quantum computers could, however, in the future:
to calculate the private key from the public one and take control of the coins
👉 The main threats are:
old P2PK addresses
addresses from which a transaction has already occurred including Satoshi's coins
💰 At today's prices, it can easily be hundreds of billions of dollars.
⏳ When will the threat come?
Estimates talk about the horizon 2028–2035.
That sounds far away... but:
upgrading Bitcoin takes years
requires broad consensus
and not all coins can be simply 'moved to safety'
✅ Is there a solution?
Year – quantum-resistant signatures already exist.
The problem is not technology, but adoption.
So the question is not if, but when.
Bitcoin is still extremely secure today.
But ignoring future cryptographic threats would be a mistake.
🧠 I am interested in your opinion:
Should Bitcoin prepare now, or only when it 'will be needed'?
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