MicroStrategy’s Michael Saylor Rejects On-Chain Proof-of-Reserves for Bitcoin Holdings
At the Bitcoin 2025 conference in Las Vegas, MicroStrategy Chairman Michael Saylor dismissed the idea of implementing on-chain proof-of-reserves (PoR) for the company’s significant Bitcoin holdings. Saylor argued that public wallet disclosures, a key component of PoR, could expose the company to security risks from hackers and nation-state actors. This stance highlights the ongoing debate around transparency versus security in the cryptocurrency space. Meanwhile, Bitcoin’s price stands at 109,614.16 USDT as of May 27, 2025, reflecting the market’s dynamic nature amidst such discussions.
MicroStrategy’s Michael Saylor Dismisses On-Chain Proof-of-Reserves as Security Risk
MicroStrategy Chairman Michael Saylor has rejected the idea of adopting on-chain proof-of-reserves (PoR) for the company’s substantial Bitcoin holdings. Speaking at the Bitcoin 2025 conference in Las Vegas, Saylor framed the practice as a liability, arguing that public wallet disclosures create vulnerabilities for hackers and nation-state actors.
The remarks came in response to a question from Blockware analyst Mitchell Askew about whether the world’s largest corporate BTC holder would share its wallet data. Saylor’s stance highlights the growing tension between transparency and security in institutional crypto custody.
Google Researchers Warn Quantum Computers Could Threaten Bitcoin Security
Google’s quantum computing team has unveiled research suggesting cryptographic standards underpinning bitcoin may be more vulnerable than previously believed. The paper estimates quantum machines could break BTC encryption with 20 times fewer resources than prior projections.
"Developers must quantify the costs of creating quantum-resistant cryptocurrencies," cautioned Craig Gidney, a Google quantum researcher. The findings heighten concerns about legacy systems like RSA cryptography and proof-of-work blockchains.
While no functional quantum computer currently exists capable of such attacks, the study underscores a growing existential risk for digital assets. Custodial Bitcoin holders appear particularly exposed should quantum decryption become feasible.
Blockchain Group Raises $72M to Expand Bitcoin Holdings in Unprecedented French Move
Paris-listed Blockchain Group has secured $72 million in funding to acquire 590 additional bitcoins, marking France’s most aggressive corporate accumulation strategy to date. The purchase elevates the company’s holdings to approximately 1,100 BTC as it pursues an ambitious target of controlling 1% of Bitcoin’s total supply by 2032.
Investors have rewarded the bold strategy with a 765% surge in the company’s stock price year-to-date. ’While competitors diversify, we’re buying the future at spot price,’ said a company representative, underscoring their conviction in Bitcoin’s long-term value proposition.
The capital raise included €63.3 million from bond issuance, demonstrating institutional appetite for Bitcoin-focused investment vehicles. This MOVE coincides with growing European institutional interest in cryptocurrency treasury strategies.
Top Online Casinos Offering Crypto Bonuses in 2025
Online casinos are increasingly embracing cryptocurrency, with platforms like 7Bit casino and BitStarz leading the charge by offering substantial BTC-denominated bonuses. These promotions—ranging from 100% match deposits to thousands in free spins—highlight the sector’s pivot toward digital assets as both a marketing tool and transactional medium.
The listed casinos feature no-KYC options and rakeback incentives, appealing specifically to crypto-native players. Notably, 7Bit Casino’s 325% bonus up to 5.25 BTC sets a new benchmark for crypto-gambling hybrids, while BitStarz mirrors this aggression with 5 BTC welcome packages.
$135K or $100K? Bitcoin Faces Critical Moment Before 2025 Conference
Bitcoin stands at a pivotal juncture as the Bitcoin 2025 Conference approaches, set to begin on May 27 in Las Vegas. Traders are eyeing a potential surge to $135,000, but the cryptocurrency must first defend a critical support level to avoid a drop to $100,000.
Analyst CrypNuevo highlights a key technical development: Bitcoin has flipped a former resistance zone into support, a bullish signal known as an R/S flip. This structural shift could determine whether the asset maintains its upward trajectory or faces a sharp correction.
