Karpeles Warns of Potential Trezor Hardware Wallet Compromise
Former Mt. Gox CEO Mark Karpeles has raised concerns about possible tampering with Trezor hardware wallets.
Former Mt. Gox CEO Mark Karpeles has raised concerns about possible tampering with Trezor hardware wallets. JUST (JST) is trading at $0.1382, up 0.2% since this brief published. This is an original TLT brief based on reporting by U.Today, with live market data added, as of Sat, 31 Oct 2026 07:00:04 UTC.
This warning suggests that recent supply chain attacks on hardware wallets may be more widespread than initially thought, potentially compromising user funds and trust in cold storage solutions.
- Karpeles warns Trezor devices may have been compromised by sophisticated implants.
- Concerns arise after recent Ledger supply chain attack.
- Crypto market remains cautious amid security fears.
- Trezor Warns CryptoBilis Customers of Hardware Implant Risk
- Karpeles Warns of Potential Trezor Hardware Wallet Compromise — this brief
Former Mt. Gox CEO Mark Karpeles has issued a warning about potential security vulnerabilities in Trezor hardware wallets, suggesting that the devices may have been compromised by sophisticated implants.
This warning follows recent reports of a supply chain attack on Ledger, another major hardware wallet provider, which has raised concerns about the overall security of cold storage solutions.
Karpeles' concerns highlight the potential for widespread vulnerabilities in hardware wallets, which are often considered one of the most secure ways to store cryptocurrencies.
The broader crypto market remains under pressure, with 
Bitcoin down 1.55% in the last 24 hours and the overall market cap at $2.66 trillion. The Fear & Greed Index stands at 30, indicating a 'Fear' sentiment among investors.
JUST (JST) is also down slightly, with a 24-hour decrease of 0.65% and a 7-day decline of 1.76%, currently trading at $0.137966 with a market cap of $1.11 billion.
Since this brief published about 14 hours ago, JUST (JST) has moved from $0.138 to $0.1382 — +0.15%.
The chart plots JST'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 JST ≈ ₦189.86 (about $0.1382), down 0.1% over 24 hours. The naira itself trades about 2.1% 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.
Karpeles Warns of Potential Trezor Hardware Wallet Compromis — questions & answers
What did Karpeles specifically warn about?
Karpeles warned that Trezor hardware wallets may have been compromised by sophisticated implants.
How does this relate to Ledger?
This warning comes after a recent supply chain attack on Ledger, suggesting a broader risk to hardware wallet security.
What is the current state of the crypto market?
The crypto market is down, with Bitcoin at -1.55% in 24 hours and a market cap of $2.66 trillion.
How much is 1 JUST worth in naira today?
About ₦189.86 at the live peer-to-peer (P2P) USDT rate, which is what Nigerians typically trade at — equivalent to roughly $0.1382. The naira price moves with both JST's US-dollar price and the USDT/NGN rate; use our JUST in naira page for any amount.
Has JUST's price moved since this brief was published?
JST is up 0.15% since this brief first published — trading at $0.1382 now versus $0.138 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 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 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.