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Greetings Bitcoiner,
Welcome to Issue #666 of Bitcoin Breakdown, where we’re bringing you your end-of-week Bitcoin Digest featuring all the need-to-know Quick Bits snippets and Quick Media. But first, today’s Top Stories:
21bitcoin now pays 1.21% on euro balances through a partner bank without lending out customer bitcoin. The SEC proposes a custody framework that would let investment advisers hold bitcoin directly instead of through ETFs. And the IMF waives El Salvador's Bitcoin accumulation breach, releasing about $138M after private donations funded the coins.
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🏦 21bitcoin Pays 1.21% on Euros, Never Lends BTC
21bitcoin launched a Bitcoin Bonus that pays a variable 1.21% annual interest on customers' euro balances held at Volksbank Raiffeisenbank Bayern Mitte eG. The partner bank provides the interest, which 21bitcoin passes on 1:1 with no margin added. Customers in Germany and Austria can have the monthly interest converted into bitcoin with no fee.
Why it matters: Failed crypto-lending platforms generated yields by lending out deposits, while 21bitcoin never lends out customer bitcoin. The fee-free monthly conversion turns ordinary fiat bank interest into an automatic bitcoin stacking plan for savers in Germany and Austria. Read more→
🔐 SEC Custody Plan Would Let Advisers Hold Bitcoin
The SEC proposed a crypto custody framework on October 1, 2026 for investment advisers and regulated funds. It would allow state trust companies to serve as custodians and permit adviser self-custody in limited circumstances, such as when no permitted custodian is available. A 60-day public comment period follows, and the proposal is not yet a final rule.
Why it matters: Fiduciary RIAs could not touch bitcoin without SEC-compliant custody rules, so ETF paper was their route. A final SEC rule would let that sidelined capital hold bitcoin directly through state trust companies, removing paper layers between savers and the asset. Read more→
🇸🇻 IMF Waives El Salvador Breach, Releases $138M
The IMF Executive Board completed two reviews under El Salvador's Extended Fund Facility, allowing an immediate disbursement of about $138M. It granted waivers for missed criteria, including the Bitcoin accumulation condition, after El Salvador documented that the added bitcoin came from private donations and that no public resources were used.
Why it matters: The IMF expects no further Bitcoin accumulation beyond documented donations, which shows its $1.4B program still polices how El Salvador saves. Private donors can send bitcoin, but treasury stacking stays fenced in by IMF loan terms. Read more→
Core Lightning, a Lightning node implementation, once again urges node operators running version 26.06.7 or earlier to upgrade immediately to version 26.06.8 to protect funds against active exploits.
Peter Todd, veteran Bitcoin developer, joins the MARA Foundation as lead maintainer of Slipstream, a private mempool service enabling direct transaction submissions to miners for experimental protocol development and security.
US spot bitcoin ETFs log $2.65B in September net inflows as institutional demand recovers amid a market recovery going into the fourth quarter.
TD Cowen, an investment bank, reports that institutions view Bitcoin as more than an investable asset, increasingly treating it as foundational financial infrastructure capable of supporting broader capital markets activity and institutional products.
Masked robbers beat a Solihull, UK individual with hammers and threaten his pregnant wife to extort hundreds of thousands in crypto during a violent home invasion.
Chainalysis, an analytics firm, faces an aiding-and-abetting lawsuit after a US judge rules it may have helped bankrupt lender Celsius falsely promote a $3.3B asset audit.
US Republican Senator Steve Daines introduces the ADAPT Act to update Bitcoin and crypto tax rules, exempting small stablecoin purchases and small network fees while imposing wash sale limits on the industry.
South Korea's financial watchdog KoFIU reports that domestic exchange profits plunged 78% in early 2026 as retail investors moved capital into surging local stock markets amid trading slumps.
Major US firms in the industry spent $8M lobbying for the US Clarity Act, a market structure bill that failed to pass the Senate despite intense advocacy efforts.
UK FCA, the country's financial watchdog, opens authorization applications for Bitcoin and crypto firms to bring the industry under full regulation ahead of October 2027 rules.
CertiK, a security firm, reports that Bitcoin and crypto exploits hit a 2026 high of $768M in September, led by major breaches at exchange Bitget and sidechain Liquid Network.
Bitcoin surged 40% over the past quarter to mark its best three-month performance since late 2024.
Bitcoin at Block, Block Inc division dedicated to Bitcoin-related things, commences a campaign that tries to relate to common people's concerns about the economy and present Bitcoin as the solution (Oct 1 | 0:30 min watch).
Clay Garrett of Bitkey argues on Stephan Livera's podcast that multi-vendor Bitcoin multisig custody isn't automatically safer, since overall security equals the weakest hardware vendor, so users should evaluate each vendor's security implementation instead of assuming diversity mitigates supply chain risks (Oct 2 | 1:02 min watch).
British man conducts an experiment at a local NatWest bank branch in which he deposits £10K in cash and tries to withdraw it a day later, finding that he couldn't get his own money back immediately (Oct 2 | 0:58 min watch).
Misha Komarov, co-founder of [[alloc] init], in an appearance on BMTV, explains how Shielded Bitcoin, their new proposal for private Bitcoin transactions, uses zero-knowledge proofs and Bitcoin PIPEs to hide senders, receivers and amounts without a soft fork, custodians or bridges, while noting that it remains an early research proposal (Oct 1 | 14:03 min watch).
Mark Moss, a macro analyst, in an appearance on BMTV, discusses why rising long-term rates signal a booming economy rather than fiscal stress, how Bitcoin benefits from both debasement and AI-driven growth, and why he projects a $1M BTC price by 2030 (Sep 30 | 29:01 min watch).
Cory Klippsten of Swan Bitcoin argues that AI agents' payment needs won't drive Bitcoin adoption, since stablecoins and dollars suffice for that purpose, but their store-of-value preference for bitcoin and AI-driven surveillance may boost demand for censorship-resistant savings (Sep 30 | 11:56 min watch).
