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Bitcoin Developer Proposes Hard Fork to Protect BTC From Quantum Computing Threats

Bitcoin could be headed for its most sweeping cryptographic overhaul yet if a new proposal gains traction.
A draft Bitcoin Improvement Proposal (BIP) titled Quantum-Resistant Address Migration Protocol (QRAMP) has been introduced by developer Agustin Cruz. It outlines a plan to enforce a network-wide migration of BTC from legacy wallets to ones secured by post-quantum cryptography.
Quantum computing involves moving away from a process reliant on binary code, ones and zeros, and exponentially increasing computing power by employing Quantum bits (qubits) that exist in multiple states simultaneously. Such a jump in power is expected to threaten modern computing encryption built by classic machines.
The proposal suggests that after a predetermined block height, nodes running the updated software would reject any transaction trying to spend coins from an address using ECDSA cryptography, which could theoretically make it vulnerable to quantum attacks.
A hard fork debate
Bitcoin currently relies on algorithms, including SHA-256 for mining and the Elliptic Curve Digital Signature Algorithm (ECDSA) for signatures. Per Cruz, legacy addresses that haven’t yet transacted are protected by additional layers, while those that have exposed their public keys—necessary to conduct transactions—may now be vulnerable “if sufficiently powerful quantum computers emerge.”
The move would require a hard fork, which is likely going to be a tall ask from the community. A hard fork refers to a change to a blockchain that renders an older version incompatible.
«I admire the effort but this will still leave everyone who doesn’t migrate’s coins vunerable, including Satoshi’s coins,» said one Reddit user about the new proposal.
«Bitcoin could implement a post quantum security for all coins but that would need a hard fork, which due to bitcoin’s history and the mantra repeated by maxis that would create a new coin and would not be bitcoin anymore.»
Read more: The Blocksize Wars Revisited: How Bitcoin’s Civil War Still Resonates Today
Preventive measure
The proposed solution sets a migration deadline to lock those funds unless they’re moved to a more secure wallet. This proposal isn’t a response to any imminent breakthrough in quantum computing. Instead, it’s a preventive measure, yet it comes a little over a month after Microsoft unveiled Majorana 1, a quantum processing unit designed to scale to a million qubits per chip.
During a migration window, users would still be able to move funds freely. The BIP calls for wallet developers, block explorers and “other infrastructure” to build tools and warnings to help users comply.
After the deadline, non-upgraded nodes could fork from the network if they continue accepting legacy transactions.
This is not the first time someone has suggested a mechanism to defend Bitcoin from quantum computing threats. Most recently, BTQ, a startup working to build blockchain technology that can withstand attacks from quantum computers, has proposed an alternative to the Proof of Work (PoW) algorithm involving quantum technology.
In its research paper, BTQ proposed a method called Coarse-Grained Boson Sampling (CGBS). This process uses light particles (bosons) to generate unique patterns—samples—that reflect the blockchain’s current state instead of hash-based mathematical puzzles.
However, this proposal would also require a hard fork involving miners and nodes replacing their existing ASIC-based hardware with quantum-ready infrastructure.
Read more: Quantum Startup BTQ Proposes More Energy Efficient Alternative to Crypto’s Proof of Work
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Tether May Develop U.S.-Only Stablecoin Under New Regulations: FT

Tether, issuer of the world’s largest stablecoin USDT, may offer a new token specifically for the U.S., according to a Financial Times report on Monday.
Paolo Ardoino said the company had been involved in discussions about the U.S. rules on stablecoins and that it may create a token just for the U.S, depending on how these discussions unfold, the FT reported, citing an interview with the Tether CEO.
Ardoino said that if new rules are brought in»make [U.S.] stablecoins competitive, there could be an interest from Tether to create a domestic stablecoin,» which would be «basically a settlement currency.»
He added that the Trump administration views stableoins as «an important instrument in the United States.»
Stablecoins are digital tokens pegged to the value of a traditional financial asset, most commonly the U.S dollar.
Regulations being considered by President Donald Trump’s administration include plans to force foreign issuers trading crypto to comply with U.S. laws.
Tether did not immediately respond to CoinDesk’s request for further comment.
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Tariff Fallout Slaps Ether Bulls With Looming $100M Liquidation

Analysis of on-chain data curated by DefiLlama shows that nearly $100 million in ether (ETH) positions are at risk if the price slides by 15%.
Traders in Asia faced a sea of red during the Monday business day as the ripple effects of U.S. President Donald Trump’s tariff policy were felt around the world.
ETH is down nearly 16% Monday, according to CoinDesk data, now trading above $1490, while the CoinDesk 20 index is down 13%, and market participants fear that the U.S. open could bring more pain.
Should the U.S. open bring another 15% drop in ETH’s price, sending it below $1,274, more than $100 million in leveraged positions could face imminent liquidation.
On-chain liquidations are potentially more impactful than those related to derivatives as it involves spot assets being sold onto the market. In MakerDAO’s case, a liquidated position is auctioned off at a cheaper rate to traders who can then sell at a relative premium, flooding the market with supply and creating more sell pressure.
One wallet which would get liquidated at $1418 had a number of close calls Monday but trimmed its holdings of ETH and paid back repaid some of the DAI it owed.
DeFiLlama data also shows that should the price of ETH sink by 20%, another $36 million is at risk.
The largest single ETH position, with $147 million in collateral locked, has a strike price of $1,132.
Lending protocols were some of the hardest hit tokens during the Monday Asia trading day, with CoinGecko data showing that the category is down 17% on-day as concern grows about the health of levarage around some positions.
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Markets in Freefall: Is the Credit Market Forcing the Fed’s Hand?

Financial markets are in a meltdown and every leg lower is strengthening expectations in the credit market that the Fed will soon offer support.
Bitcoin (BTC), the leading cryptocurrency by market value, traded 8% lower at $75,800 and the U.S. stocks were on track for their worst three-day performance, with S&P 500 futures down roughly 5% on Monday alone and losses approaching 15% overall.
The Fed has a history of intervening during financial meltdowns with rate cuts and other stimulus measures. So, traders, having become accustomed to liquidity support, are betting that the Fed will act similarly this time.
According to the CME FedWatch Tool, the federal funds futures market is now pricing in as many as five rate cuts in 2025. For the upcoming May 7 meeting, there’s a 61% probability of a 25 basis point cut, which would lower the target range to 4.25–4.50%. By year-end, the market sees the fed funds rate falling as low as 3.00–3.25%.
The risk-off, coupled with the growth scare and Fed rate cut bets, is giving Trump administration what it wants – plunging Treasury yields. The all-important 10-year yield — the benchmark for the U.S. economy — has dropped to 3.923%.
The popular narrative is that lower yields would make it easier for the Treasury to refinance trillions of dollars in debt in the coming 12 months, which is why the Trump administration may be more tolerant of the asset market swoon.
This refinancing urgency stems from a policy shift under former Treasury Secretary Janet Yellen, who moved from longer-dated coupon issuance to short-term Treasury bills. Since 2023, about two-thirds of the deficit had been financed through bill issuance — short-term debt with rates hovering around 5%. While this may have temporarily supported liquidity, it created a ticking time bomb of expensive short-term debt that now needs to be rolled over.
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