quantumcomputin

#reusedbitcoinaddresseshold4.33mbtc
🔐 Reused Bitcoin addresses now hold 4.33M $BTC
New Glassnode data shows that 4.33 million BTC sits in addresses that have been reused. That’s about 21.5% of circulating supply, up from 3.79 million BTC a year earlier (roughly +14%).
Why it matters: when an address is reused, its public key becomes visible on-chain. Adding it to coins that are exposed by design, total exposure is about 6.26M BTC, or 31.2% of supply, the highest level since around 2016.
Key points:
🔹 1.94M BTC is exposed structurally, including about 1.71M in legacy P2PK outputs and 222K under visible Taproot keys
🔹 About 1.10M BTC in P2PK is linked to Satoshi Nakamoto
🔹 Most of the avoidable exposure comes from address reuse, which is often manual habit or custodial setups
🔹 Moving coins to a fresh address removes the exposure for those coins
What you can do:
✅ Use a modern wallet that generates a new receiving address every time
✅ Don’t send to the same address twice
✅ If you have funds on an old reused address, plan a move to a fresh one and account for the on-chain fee
This is a privacy and security hygiene issue, not a sign that anything has been hacked.
#bitcoin #security #quantumcomputin

#ReusedBitcoinAddressesHold4.33MBTC
​🚨 The Hidden Vulnerability in Bitcoin: 31.2% Supply Exposed?
​According to recent Glassnode data (October 8), a staggering 4.33 million BTC (about 21.5% of the circulating supply) are sitting in reused Bitcoin addresses.
​While address reuse impacts privacy, the long-term concern is much bigger: Quantum Computing.
​🔍 Why is Address Reuse a Risk?
​Exposed Public Keys: When a Bitcoin address is reused after spending, its public key remains permanently exposed on the blockchain.
​The Quantum Threat: A sufficiently powerful future quantum computer could potentially exploit these exposed public keys to crack the cryptography and steal funds.
​📊 The Scale of the Issue
​Reused Addresses: 4.33M BTC (~21.5% of supply)
​Total Exposed Supply (including older address types): 6.26M BTC (~31.2% of total supply)
​⚠️ A Crucial Note
​This does NOT mean these coins can be hacked today. No quantum computer currently possesses the demonstrated capability to break Bitcoin's cryptography at this scale.
​The real challenge for the crypto community is upgrading and future-proofing Bitcoin's security before quantum technology reaches that level.
#BTC #bitcoin #QuantumComputin g #security
$BTC

six wallets that had been dead for a full 10 years suddenly came back to life this month and transferred $40 million, and while that sounds strange, overall activity on old wallets is now at its lowest level since 2022

at the same time, Ripple is already preparing the XRP Ledger for the so-called Q-day—this is the hypothetical moment when quantum computers become powerful enough to break standard encryption, and this week BTC and Ethereum also published their own migration plans to more secure algorithms

let me explain simply why this matters: your crypto wallets are protected by mathematics that an ordinary computer can’t break in a reasonable amount of time, but a quantum computer could theoretically do it—so big networks are already making a backup plan for the future instead of waiting until the threat becomes real

it’s interesting that these two pieces of news together show two opposite ends of crypto: on one side, people who held coins for years are finally moving them; on the other, the entire industry is already thinking 10–20 years ahead about threats that don’t even exist yet

i think that preparing for a quantum threat right now is a more important piece of news than any daily move in price—tell me if you think differently

$BTC $XRP

#bitcoin #xrp #QuantumComputin