Coinbase Proposes Early Bitcoin Quantum Security Measures, Holds 5% of Supply
Coinbase urges Bitcoin developers to begin preparing for quantum computing threats, while managing its own custody of 5% of BTC supply.
Coinbase urges Bitcoin developers to begin preparing for quantum computing threats, while managing its own custody of 5% of BTC supply. Bitcoin (BTC) is trading at $81,764.00, down 0.7% since this brief published. This is an original TLT brief synthesising 8 outlets (The Cryptonomist, Blockonomi, Bitcoin Sistemi, and others), with their figures cross-checked, plus live market data, as of Wed, 14 Oct 2026 15:00:06 UTC.
Quantum computing poses a long-term threat to Bitcoin's cryptographic security, potentially compromising wallets and network integrity. Early preparation is crucial to protect the network and assets, especially as migration challenges and legacy coin issues arise.
- Coinbase advances Bitcoin’s post-quantum readiness while holding about 5% of BTC ↗
- Coinbase lays out flexible designs as key priority for Bitcoin’s post-quantum migration ↗
- Coinbase proposes ways to protect Bitcoin from quantum risks ↗
- Coinbase, which holds 5% of all bitcoin, wants the quantum fix started now ↗
- Coinbase Paper Outlines Bitcoin Post-Quantum Security Plan ↗
- A Major Quantum Threat is Approaching for Bitcoin! Coinbase Issues Urgent Call! ↗
- Coinbase Calls for Early Bitcoin Migration to Quantum Security ↗
- Coinbase Warns Bitcoin Can’t Wait for Quantum Computers to Become a Threat ↗
- Coinbase urges Bitcoin to adopt quantum-resistant cryptography now.
- The exchange holds 5% of BTC supply and is preparing its systems.
- Flexible wallet designs and phased migration are proposed solutions.
- Current market cap: $1.65T; BTC price: $82,334 (-1.17% 24h).
Multiple outlets, including CoinDesk, Blockonomi, and The Cryptonomist, agree that Coinbase published a technical paper on October 13 urging Bitcoin developers to prepare for quantum computing threats. They also corroborate that Coinbase holds about 5% of all Bitcoin in custody and is already preparing its systems. However, while most outlets mention Coinbase's proposals for flexible wallet designs and phased migration, The Cryptonomist and CryptoNews emphasize that legacy coin issues remain unresolved, highlighting a potential area of contention.
Coinbase has taken a proactive stance on 
Bitcoin's post-quantum readiness, urging developers to begin preparations for future threats posed by quantum computing. The exchange published a technical paper on October 13, proposing that the Bitcoin network adopt flexible address designs and begin planning for signature upgrades and fund migration.
The urgency stems from the potential of quantum computers to break the classical cryptography that currently secures Bitcoin. Coinbase warns that waiting for quantum computers to become a tangible threat could leave the network vulnerable and complicate migration efforts. The exchange suggests implementing hybrid wallets and backup quantum-proof keys to mitigate risks.
Coinbase's position is supported by its own actions, as the exchange holds approximately 5% of all Bitcoin in custody and is already preparing its systems for quantum threats. This aligns with its recommendations for the broader network to adopt flexible designs like BIP-360 and P2TRv2, which offer more adaptability for future cryptographic upgrades.
The proposal comes at a time when the Bitcoin network is facing increasing scrutiny over its long-term security and scalability. While the immediate threat of quantum computing is not imminent, Coinbase argues that early preparation is essential to avoid potential disruptions and protect user funds.
The broader market context shows Bitcoin's price at $82,334, down 1.17% in the last 24 hours, with a market cap of $1.65 trillion. The overall crypto market is also down, with a total market cap of $2.83 trillion. The Fear & Greed Index stands at 62, indicating a state of 'Greed' among investors.
The development underscores the importance of proactive security measures in the crypto space. As quantum computing technology advances, the crypto community will need to address these challenges to ensure the long-term viability of blockchain networks. The focus will now be on how the Bitcoin developer community responds to these proposals and the timeline for implementation.
Since this brief published about 24 hours ago, Bitcoin (BTC) has moved from $82,334.00 to $81,764.00 — -0.69%.
The chart plots BTC's price: grey is the move before this brief published, the vertical dashed line marks the moment it published, the horizontal dashed line is the price then, and the coloured area is the move since — from TLT's market data (daily resolution). It shows what happened after the news, not that the news caused it; many factors move prices. Not financial advice.
At today's peer-to-peer rate, 1 BTC ≈ ₦111.76M (about $81,764.00), down 2.0% over 24 hours. The naira itself trades about 2.7% above the official rate on the P2P market, so a Nigerian buyer's effective cost differs from the headline dollar price.
Live market data
Current prices for the assets in this story — live, source-stamped, updated every 15 minutes.
1 key figure independently matched across 3 outlets reporting this story.
TLT extracts the figures each outlet reports and flags the ones that agree. Numbers cited by only one outlet are attributed in the brief, not shown as corroborated.
Coinbase Proposes Early Bitcoin Quantum Security Measures, H — questions & answers
What is Coinbase's main recommendation for Bitcoin's quantum security?
Coinbase urges Bitcoin to adopt flexible wallet designs and begin planning for signature upgrades and fund migration to prepare for quantum threats.
How much Bitcoin does Coinbase hold in custody?
Coinbase holds approximately 5% of all Bitcoin in custody.
What are the potential challenges of migrating to quantum-resistant cryptography?
Challenges include managing legacy coins and ensuring a smooth transition without disrupting the network or compromising user funds.
How much is 1 Bitcoin worth in naira today?
About ₦111.76M at the live peer-to-peer (P2P) USDT rate, which is what Nigerians typically trade at — equivalent to roughly $81,764.00. The naira price moves with both BTC's US-dollar price and the USDT/NGN rate; use our Bitcoin in naira page for any amount.
Has Bitcoin's price moved since this brief was published?
BTC is down 0.69% since this brief first published — trading at $81,764.00 now versus $82,334.00 at publication. TLT re-checks this figure against CoinGecko and Binance every 15 minutes.
Which outlets reported this story?
This is an original TLT brief that synthesises reporting from The Cryptonomist, Blockonomi, Bitcoin Sistemi, CoinCodex, CoinDesk, Crypto.news, CryptoNews, The Block, with the key figures cross-checked for agreement across them. It is not a copy of any one article — follow the source links above for the original reporting.
Original summary — not financial advice. This is an original TLT brief that summarises a development reported elsewhere and adds live market data for context; it is not the original article and reproduces no part of it. Follow the source link above for full details. Crypto is volatile and high-risk — always do your own research.