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Casa's Jameson Lopp Advises Against Abandoning Bitcoin Self Custody

Lopp warns against relying on ETFs and custodians after recent wallet security incidents.

Lopp warns against relying on ETFs and custodians after recent wallet security incidents. Bitcoin (BTC) is trading at R$412.765 ($81,853.00), up 0.4% since this brief published. This is an original Criptano brief synthesising 2 outlets (Blockonomi, Crypto.news), plus live market data, as of Fri, 23 Oct 2026 13:45:01 UTC.

Why it matters

The warning highlights the ongoing debate between the convenience of third-party custody and the security of self-custody in the Bitcoin ecosystem, especially amidst recent security breaches.

Covered by 2 outlets over about 4 h — Criptano synthesises them all into one brief
  1. Crypto.news
    Jameson Lopp warns Bitcoin holders against giving up self custody ↗
  2. Blockonomi
    Casa’s Jameson Lopp Warns Bitcoin Holders Not to Give Up Self Custody ↗
Key takeaways
  • Jameson Lopp urges Bitcoin holders to maintain self custody despite ETF options.
  • Recent security incidents affected Coldcard, Ledger, and Qubic wallets.
  • Lopp recommends multisig wallets with keys stored in different locations.
  • Bitcoin market remains relatively stable amid the security concerns.
What the reporting agrees on

Blockonomi and Crypto.news both report that Jameson Lopp, Casa's chief security officer, advised against relying on Bitcoin ETFs and third-party custodians in an October 22 open letter. They agree that recent security incidents, including attacks on Coldcard, Ledger, and Qubic wallets, underscore the risks of abandoning self custody. However, while both outlets highlight Lopp's recommendation for multisig wallets with distributed keys, only Blockonomi provides specific details about the types of exploits mentioned in the letter.

Em uma carta aberta publicada em 22 de outubro, Jameson Lopp, diretor de segurança da Casa, alertou os detentores de Bitcoin sobre os riscos de abandonar a autocustódia em favor de ETFs e custodiantes de terceiros. Lopp enfatizou que, embora os ETFs e custodiantes possam parecer convenientes, eles apenas transferem o risco para outras partes, em vez de eliminá-lo.

A carta de Lopp foi motivada por uma série de incidentes de segurança recentes que afetaram várias carteiras de criptomoedas. Ataques a dispositivos Coldcard, carteiras Ledger vendidas por um revendedor e carteiras Qubic foram mencionados como exemplos dos riscos enfrentados pelos usuários que confiam em soluções de custódia de terceiros.

Lopp recomenda que os detentores de Bitcoin utilizem carteiras multisig, onde as chaves privadas são armazenadas em locais diferentes, como uma medida de segurança adicional. Essa abordagem visa mitigar os riscos associados a ataques direcionados e falhas de segurança em dispositivos individuais.

O mercado de criptomoedas, incluindo o Bitcoin, permaneceu relativamente estável em meio a essas preocupações de segurança. No momento da publicação, o Bitcoin estava sendo negociado a US$ 81.533, com uma queda de 0,46% nas últimas 24 horas e uma ligeira queda de 0,42% na última semana. O valor de mercado total das criptomoedas estava em US$ 2,8 trilhões, com o índice de Medo e Ganância permanecendo em 50, indicando um sentimento neutro.

A recomendação de Lopp ocorre em um momento em que mais investidores estão considerando opções de custódia de terceiros, especialmente com o aumento da popularidade dos ETFs de Bitcoin. No entanto, os recentes incidentes de segurança servem como um lembrete dos riscos inerentes a essas alternativas.

Market reaction since this brief Live

Since this brief published about 4 hours ago, Bitcoin (BTC) has moved from R$411.151,60$81,533.00 to R$412.765,28$81,853.00 — +0.39%.

$81,488$81,591$81,693$81,795$81,898 published · $81,533 now · $81,853 (+0.39%) 23 de out. 09:30 UTC 23 de out. 13:45 UTC
BeforeSince publishPublished · R$411.151,60$81,533.00

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 Criptano's market data (daily resolution). It shows what happened after the news, not that the news caused it; many factors move prices. Não é recomendação.

What this means in real

At today's peer-to-peer rate, 1 BTC ≈ R$411,925.22 (about $81,853.00), up 0.3% over 24 hours. The real itself trades about 0.2% below the official rate on the P2P market, so a Brazilian 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
R$412.765,28$81,853.00 ▲ 0.28%
+0.39% since this brief published
7d -1.06%MCap R$8.30TFull BTC data →
The market when this published · 23 de outubro de 2026
Total market capR$14.11T
Bitcoin 24h-0.46%
Ethereum 24h-0.45%
Dominância BTC58.5%
Medo & Ganância50 · Neutral

Casa's Jameson Lopp Advises Against Abandoning Bitcoin S — questions & answers

Quais incidentes de segurança motivaram o alerta de Lopp?

Incidentes recentes afetaram dispositivos Coldcard, carteiras Ledger vendidas por um revendedor e carteiras Qubic.

Qual é a recomendação de Lopp para melhorar a segurança do Bitcoin?

Lopp recomenda o uso de carteiras multisig com chaves privadas armazenadas em locais diferentes.

Como o mercado de Bitcoin reagiu às preocupações de segurança?

O mercado permaneceu relativamente estável, com o Bitcoin caindo 0,46% nas últimas 24 horas.

How much is 1 Bitcoin worth in real today?

About R$411,925.22 at the live peer-to-peer (P2P) USDT rate, which is what Brazilians typically trade at — equivalent to roughly $81,853.00. The real price moves with both BTC's US-dollar price and the USDT/BRL rate; use our Bitcoin in real page for any amount.

Has Bitcoin's price moved since this brief was published?

BTC is up 0.39% since this brief first published — trading at R$412.765 ($81,853.00) now versus R$411.152 ($81,533.00) at publication. Criptano re-checks this figure against CoinGecko and Binance every 15 minutes.

Which outlets reported this story?

This is an original Criptano brief that synthesises reporting from Blockonomi, Crypto.news, 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.

Criptano Newsdesk Data-stamped

Criptano'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. Não é recomendação.

Market data verified against CoinGecko & Binance · 23 de outubro de 2026 ⛓ Timestamped at Bitcoin block #972,762 sha256:4243eb2fdb2f24c3
Corroborated across 2 outlets, reported over about 4 h — this is an original Criptano summary with live market data, not the original article.Crypto.news · 23 de out. 05:34 ↗Blockonomi · 23 de out. 09:30 ↗

Original summary — not financial advice. This is an original Criptano 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.