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Coinbase CEO Warns of Quantum Computing Threat to Crypto Security

Brian Armstrong emphasizes the need for crypto to prepare for the potential risks posed by quantum computing.

Brian Armstrong emphasizes the need for crypto to prepare for the potential risks posed by quantum computing. Bitcoin (BTC) is trading at $77,215.00, up 0.2% since this brief published. This is an original TLT brief based on reporting by CoinEdition, with live market data added, as of Sat, 31 Oct 2026 05:15:02 UTC.

Why it matters

Quantum computing could undermine current cryptographic methods, threatening the security of cryptocurrencies like Bitcoin if the industry is not prepared.

Key takeaways
  • Coinbase CEO Brian Armstrong highlights quantum computing as a major long-term threat to crypto.
  • Armstrong urges the industry to prepare for quantum threats before they can break existing cryptography.
  • Bitcoin's market cap remains at $1.55T amid broader market downturn.

During Coinbase's Q3 earnings call on October 29, CEO Brian Armstrong highlighted quantum computing as a more serious long-term threat to cryptocurrency security than artificial intelligence.

Armstrong emphasized the need for the crypto industry to proactively address the potential risks posed by quantum computing, which could eventually break the cryptographic methods that underpin Bitcoin and other digital currencies.

While AI has been a topic of concern for many in the tech industry, Armstrong's comments suggest that the crypto community should prioritize preparing for the challenges posed by quantum advancements.

The broader crypto market remains in a downturn, with Bitcoin's price at $77077, down 1.04% in the last 24 hours and 4.73% over the past week. The total crypto market cap stands at $2.66 trillion.

Given the potential impact of quantum computing on crypto security, investors and stakeholders may need to monitor developments in this area closely. The industry's response to this emerging threat could shape the future landscape of digital asset security.

Market reaction since this brief Live

Since this brief published about 12 hours ago, Bitcoin (BTC) has moved from $77,077.00 to $77,215.00 — +0.18%.

$77,058$77,102$77,146$77,190$77,234 published · $77,077 now · $77,215 (+0.18%) Oct 30 17:15 UTC Oct 31 05:15 UTC
BeforeSince publishPublished · $77,077.00

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.

What this means in naira

At today's peer-to-peer rate, 1 BTC ≈ ₦106.17M (about $77,215.00), down 1.6% over 24 hours. The naira itself trades about 2.2% 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 asset in this story — live, source-stamped, updated every 15 minutes.

#1
$77,215.00 ▼ 1.61%
+0.18% since this brief published
7d -4.73%MCap $1.55TFull BTC data →
The market when this published · October 30, 2026
Total market cap$2.66T
Bitcoin 24h-1.04%
Ethereum 24h+0.52%
BTC dominance58.2%
Fear & Greed30 · Fear

Coinbase CEO Warns of Quantum Computing Threat to Crypto Sec — questions & answers

What did Coinbase CEO Brian Armstrong say about quantum computing?

Armstrong warned that quantum computing poses a greater long-term threat to crypto security than AI and urged the industry to prepare for this risk.

How does quantum computing threaten cryptocurrencies?

Quantum computing could break the cryptographic methods that protect cryptocurrencies like Bitcoin, potentially compromising their security.

What is the current state of the crypto market?

The total crypto market cap is $2.66 trillion, with Bitcoin at $77077, down 1.04% in the last 24 hours.

How much is 1 Bitcoin worth in naira today?

About ₦106.17M at the live peer-to-peer (P2P) USDT rate, which is what Nigerians typically trade at — equivalent to roughly $77,215.00. 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 up 0.18% since this brief first published — trading at $77,215.00 now versus $77,077.00 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 CoinEdition. It is not a copy of any one article — follow the source links above for the original reporting.

TLT Newsdesk Data-stamped

TLT's newsdesk writes original briefs by synthesising coverage from across the crypto press — 50+ outlets including CoinDesk, The Block, Decrypt and Cointelegraph — cross-checking the figures they report — and verifying them against on-chain data from DeFiLlama and mempool.space — plus live market context (CoinGecko, Binance). We summarise and link to every source; we never reproduce full articles. Read our editorial standards and how we use AI. Not financial advice.

Market data verified against CoinGecko & Binance · October 31, 2026 ⛓ Timestamped at Bitcoin block #973,926 sha256:040d4abc992c6ebb
Based on reporting by CoinEdition — this is an original TLT summary with live market data, not the original article.CoinEdition · Oct 30 17:15 ↗

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.