Ledger CTO Warns of Emerging Cryptographic Threats to Bitcoin
Ledger's Chief Technology Officer has highlighted two new cryptographic vulnerabilities that could impact Bitcoin's long-term security.
Ledger's Chief Technology Officer has highlighted two new cryptographic vulnerabilities that could impact Bitcoin's long-term security. Bitcoin (BTC) is trading at ₹73,49,948 ($77,308.00), down 0.2% since this brief published. This is an original Token Times brief based on reporting by U.Today, with live market data added, as of Sat, 31 Oct 2026 02:15:01 UTC.
These cryptographic breakthroughs could potentially undermine the security assumptions underpinning Bitcoin, posing a long-term threat to the network's integrity and user confidence.
- Ledger CTO identifies two new cryptographic vulnerabilities affecting Bitcoin.
- Threats could compromise Bitcoin's long-term security model.
- Bitcoin price remains relatively stable despite the warning.
- Binance CEO Warns of AI-Powered Phishing Threats to Bitcoin Security
- Ledger CTO Warns of Emerging Cryptographic Threats to Bitcoin — this brief
Ledger's Chief Technology Officer, Charles Guillemet, has issued a warning about two new cryptographic vulnerabilities that could pose a threat to 
Bitcoin. These breakthroughs, while not immediately exploitable, represent potential risks to the network's long-term security model.
Guillemet did not provide specific technical details about the vulnerabilities but emphasized that they could undermine some of the fundamental security assumptions of the Bitcoin protocol. This warning comes at a time when the cryptocurrency community is increasingly focused on security issues.
Despite the warning, Bitcoin's price has shown relative stability, with a 0.70% increase in the past 24 hours, trading at $77,467. However, the broader market remains cautious, as indicated by the Fear & Greed index at 30, which signifies a 'Fear' sentiment.
The cryptographic vulnerabilities mentioned by Guillemet highlight the ongoing challenges in maintaining the security of decentralized networks. As Bitcoin and other cryptocurrencies continue to grow in adoption and value, the importance of addressing these vulnerabilities becomes even more critical.
The development underscores the need for continuous research and vigilance in the cryptocurrency space. Investors and users should monitor further updates on these vulnerabilities and their potential impact on the network.
Since this brief published about 5 hours ago, Bitcoin (BTC) has moved from ₹73,65,064.32$77,467.00 to ₹73,49,947.63$77,308.00 — -0.21%.
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 Token Times'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.
Will Bitcoin dip to $75,000 in October?
Crowd-implied probability on Polymarket, ₹31.93M 24h volume, resolves Nov 1 — snapshotted when this brief published (Oct 31 01:05 UTC). A market price reflects what traders collectively expect; it is not a forecast by Token Times and will have moved since. View the market ↗
At today's peer-to-peer rate, 1 BTC ≈ ₹8.01M (about $77,308.00), up 0.6% over 24 hours. The rupee itself trades about 9.0% above the official rate on the P2P market, so a Indian 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.
Ledger CTO Warns of Emerging Cryptographic Threats to Bitcoi — questions & answers
What are the specific cryptographic vulnerabilities Ledger warned about?
The exact nature of the vulnerabilities has not been disclosed, only that they pose a long-term threat to Bitcoin's security.
How is Bitcoin's price reacting to the security warning?
Bitcoin's price has increased by 0.70% in the past 24 hours, showing relative stability despite the warning.
What is the broader market sentiment regarding this development?
The Fear & Greed index stands at 30, indicating a 'Fear' sentiment in the market.
How much is 1 Bitcoin worth in rupee today?
About ₹8.01M at the live peer-to-peer (P2P) USDT rate, which is what Indians typically trade at — equivalent to roughly $77,308.00. The rupee price moves with both BTC's US-dollar price and the USDT/INR rate; use our Bitcoin in rupee page for any amount.
Has Bitcoin's price moved since this brief was published?
BTC is down 0.21% since this brief first published — trading at ₹73,49,948 ($77,308.00) now versus ₹73,65,064 ($77,467.00) at publication. Token Times re-checks this figure against CoinGecko and Binance every 15 minutes.
Which outlets reported this story?
This is an original Token Times brief that synthesises reporting from U.Today. 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 Token Times 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.