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Digital gold is the term the normies know it by, but within its enthusiast circles, Bitcoin is celebrated for its decentralized structure and proven security. Yet, as the crypto market grows, even its most fundamental strengths are being examined.Recently, major figures in the traditional financial world have started asking tough questions about the long-term viability of Bitcoin cryptography and foundational technology.In November 2025, Jan van Eck, the CEO of global investment giant VanEck, brought these concerns to the forefront.&nbsp;During an appearance on CNBC, he signaled that the firm’s commitment to Bitcoin depends on the network's ability to solve looming security risks related to encryption and privacy.&nbsp;He stated clearly that VanEck could walk away if the core investment thesis is fundamentally broken, sparking a necessary conversation about the future of the network.<h2 id="a-quick-brief-on-vaneck">A Quick Brief on VanEck</h2>VanEck is not just another name in finance; it is a global investment manager with a history of foresighted innovation. Known for being an early mover into new asset classes, the firm transitioned from gold investing in the 1960s to becoming a leader in the modern ETF space. Today, they are a dominant force in the cryptocurrency ecosystem, most notably through the launch of the VanEck Bitcoin Trust (HODL) after years of persistent effort to bring spot Bitcoin ETFs to the U.S. market.&nbsp;When the leadership at VanEck speaks on digital assets, the industry listens because their perspective is backed by decades of institutional experience<h2 id="what-are-vaneck%E2%80%99s-ceo%E2%80%99s-primary-concerns">What are VanEck’s CEO’s Primary Concerns?</h2>In recent discussions, Jan van Eck has shifted focus from mere market performance metrics to the underlying Bitcoin encryption concerns.&nbsp;His apprehension comes from potential future vulnerabilities that could undermine the asset's integrity over the coming decade. As a veteran of the markets, he emphasizes that support for any asset is based on a specific, logical investment thesis.This stance was on full display during a recent appearance on CNBC, where he suggested that if specific Bitcoin security risks are not adequately addressed, his firm might have to reconsider its position.&nbsp;Van Eck stated, “Ultimately, VanEck has been around before Bitcoin. We will walk away from Bitcoin if we think the thesis is fundamentally broken.” He noted that while they do not believe the thesis is broken yet, the community is increasingly worried about whether there is "enough encryption" and "enough privacy" in the protocol.Let’s break down these specific worries.<h3 id="long-term-computing-threats">Long-term computing threats</h3>The primary concern over Bitcoin is the arrival of quantum computing. Bitcoin security currently relies on Elliptic Curve Cryptography (ECC), which is secure against classical computers but vulnerable to quantum systems running Shor’s algorithm.&nbsp;Jan van Eck noted that upgrading Bitcoin to be "quantum resistant" is a slow and politically fraught process that requires near-universal consensus.<h3 id="de-anonymization-concerns">De-anonymization concerns</h3>While often described as anonymous, Bitcoin is actually pseudonymous.&nbsp;Every transaction is recorded on a public ledger where money can be tracked between wallet addresses. In his interview, Van Eck highlighted that this transparency is increasingly at odds with how users want to manage their financial data, creating a long-term risk for its "digital gold" status.<h3 id="cryptographic-algorithms-vulnerabilities">Cryptographic Algorithms Vulnerabilities</h3>The specific algorithms that secure Bitcoin signatures are also under the microscope.Jan van Eck shared on X that the market is currently digesting risks including "quantum breaking encryption concerns" alongside traditional market cycles.&nbsp;If the Bitcoin cryptography is deemed insufficient to protect against future breaches, the core thesis begins to crumble.<h2 id="what%E2%80%99s-the-political-context">What’s the Political Context?</h2>The discussion around privacy is also a political one. Governments are tightening their grip on crypto regulations by targeting privacy-preserving technologies.&nbsp;However, van Eck’s comments suggest a counter-narrative: as the financial system becomes more monitored, the demand for privacy among legitimate users will grow.&nbsp;The political push for transparency might actually drive investors toward assets that offer shielded transactions. According to the VanEck Mid-November 2025 Bitcoin ChainCheck, many traders are now factoring these structural risks into their portfolio decisions.<h2 id="what-is-zcash%E2%80%99s-zec">What is Zcash’s ZEC</h2>Jan van Eck specifically mentioned the Zcash token as a project that many Bitcoin OGs are now examining. Zcash is a privacy-centric digital currency that leverages zk-SNARKs technology.This allows users to verify transactions without revealing the sender, receiver, or the amount involved. It offers shielded transactions to provide the level of privacy that van Eck believes Bitcoin currently lacks.&nbsp;While it shares a 21 million supply limit with Bitcoin, its focus on advanced encryption makes it a primary candidate for those worried about transparency.<h2 id="zec-vs-btc">ZEC vs BTC&nbsp;</h2>

<table style="border:none;border-collapse:collapse;"><colgroup><col width="139"><col width="161"><col width="192"></colgroup><tbody><tr style="height:32.22697753906249pt"><td style="border-left:solid #000000 0.6000000000000001pt;border-right:solid #000000 0.6000000000000001pt;border-bottom:solid #000000 0.6000000000000001pt;border-top:solid #000000 0.6000000000000001pt;vertical-align:top;padding:5pt 5pt 5pt 5pt;overflow:hidden;overflow-wrap:break-word;"><span style="font-size:11pt;font-family:'Open Sans',sans-serif;color:#000000;background-color:transparent;font-weight:700;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre;white-space:pre-wrap;">Feature</td><td style="border-left:solid #000000 0.6000000000000001pt;border-right:solid #000000 0.6000000000000001pt;border-bottom:solid #000000 0.6000000000000001pt;border-top:solid #000000 0.6000000000000001pt;vertical-align:top;padding:5pt 5pt 5pt 5pt;overflow:hidden;overflow-wrap:break-word;"><span style="font-size:11pt;font-family:'Open Sans',sans-serif;color:#000000;background-color:transparent;font-weight:700;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre;white-space:pre-wrap;">Bitcoin (BTC)</td><td style="border-left:solid #000000 0.6000000000000001pt;border-right:solid #000000 0.6000000000000001pt;border-bottom:solid #000000 0.6000000000000001pt;border-top:solid #000000 0.6000000000000001pt;vertical-align:top;padding:5pt 5pt 5pt 5pt;overflow:hidden;overflow-wrap:break-word;"><span style="font-size:11pt;font-family:'Open Sans',sans-serif;color:#000000;background-color:transparent;font-weight:700;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre;white-space:pre-wrap;">Zcash (ZEC)</td></tr><tr style="height:52.45395507812499pt"><td style="border-left:solid #000000 0.6000000000000001pt;border-right:solid #000000 0.6000000000000001pt;border-bottom:solid #000000 0.6000000000000001pt;border-top:solid #000000 0.6000000000000001pt;vertical-align:top;padding:5pt 5pt 5pt 5pt;overflow:hidden;overflow-wrap:break-word;"><span style="font-size:11pt;font-family:'Open Sans',sans-serif;color:#000000;background-color:transparent;font-weight:700;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre;white-space:pre-wrap;">Privacy Level</td><td style="border-left:solid #000000 0.6000000000000001pt;border-right:solid #000000 0.6000000000000001pt;border-bottom:solid #000000 0.6000000000000001pt;border-top:solid #000000 0.6000000000000001pt;vertical-align:top;padding:5pt 5pt 5pt 5pt;overflow:hidden;overflow-wrap:break-word;"><span style="font-size:11pt;font-family:'Open Sans',sans-serif;color:#000000;background-color:transparent;font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre;white-space:pre-wrap;">Pseudonymous <span style="font-size:11pt;font-family:'Open Sans',sans-serif;color:#000000;background-color:transparent;font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre;white-space:pre-wrap;"> <span style="font-size:11pt;font-family:'Open Sans',sans-serif;color:#000000;background-color:transparent;font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre;white-space:pre-wrap;">(Public Ledger)</td><td style="border-left:solid #000000 0.6000000000000001pt;border-right:solid #000000 0.6000000000000001pt;border-bottom:solid #000000 0.6000000000000001pt;border-top:solid #000000 0.6000000000000001pt;vertical-align:top;padding:5pt 5pt 5pt 5pt;overflow:hidden;overflow-wrap:break-word;"><span style="font-size:11pt;font-family:'Open Sans',sans-serif;color:#000000;background-color:transparent;font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre;white-space:pre-wrap;">Private (Optional Shielded Ledger)</td></tr><tr style="height:42.72697753906249pt"><td style="border-left:solid #000000 0.6000000000000001pt;border-right:solid #000000 0.6000000000000001pt;border-bottom:solid #000000 0.6000000000000001pt;border-top:solid #000000 0.6000000000000001pt;vertical-align:top;padding:5pt 5pt 5pt 5pt;overflow:hidden;overflow-wrap:break-word;"><span style="font-size:11pt;font-family:'Open Sans',sans-serif;color:#000000;background-color:transparent;font-weight:700;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre;white-space:pre-wrap;">Encryption Tech</td><td style="border-left:solid #000000 0.6000000000000001pt;border-right:solid #000000 0.6000000000000001pt;border-bottom:solid #000000 0.6000000000000001pt;border-top:solid #000000 0.6000000000000001pt;vertical-align:top;padding:5pt 5pt 5pt 5pt;overflow:hidden;overflow-wrap:break-word;"><span style="font-size:11pt;font-family:'Open Sans',sans-serif;color:#000000;background-color:transparent;font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre;white-space:pre-wrap;">SHA-256 / ECDSA</td><td style="border-left:solid #000000 0.6000000000000001pt;border-right:solid #000000 0.6000000000000001pt;border-bottom:solid #000000 0.6000000000000001pt;border-top:solid #000000 0.6000000000000001pt;vertical-align:top;padding:5pt 5pt 5pt 5pt;overflow:hidden;overflow-wrap:break-word;"><span style="font-size:11pt;font-family:'Open Sans',sans-serif;color:#000000;background-color:transparent;font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre;white-space:pre-wrap;">zk-SNARKs / Equihash</td></tr><tr style="height:30.72697753906249pt"><td style="border-left:solid #000000 0.6000000000000001pt;border-right:solid #000000 0.6000000000000001pt;border-bottom:solid #000000 0.6000000000000001pt;border-top:solid #000000 0.6000000000000001pt;vertical-align:top;padding:5pt 5pt 5pt 5pt;overflow:hidden;overflow-wrap:break-word;"><span style="font-size:11pt;font-family:'Open Sans',sans-serif;color:#000000;background-color:transparent;font-weight:700;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre;white-space:pre-wrap;">Total Supply</td><td style="border-left:solid #000000 0.6000000000000001pt;border-right:solid #000000 0.6000000000000001pt;border-bottom:solid #000000 0.6000000000000001pt;border-top:solid #000000 0.6000000000000001pt;vertical-align:top;padding:5pt 5pt 5pt 5pt;overflow:hidden;overflow-wrap:break-word;"><span style="font-size:11pt;font-family:'Open Sans',sans-serif;color:#000000;background-color:transparent;font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre;white-space:pre-wrap;">21 Million</td><td style="border-left:solid #000000 0.6000000000000001pt;border-right:solid #000000 0.6000000000000001pt;border-bottom:solid #000000 0.6000000000000001pt;border-top:solid #000000 0.6000000000000001pt;vertical-align:top;padding:5pt 5pt 5pt 5pt;overflow:hidden;overflow-wrap:break-word;"><span style="font-size:11pt;font-family:'Open Sans',sans-serif;color:#000000;background-color:transparent;font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre;white-space:pre-wrap;">21 Million</td></tr><tr style="height:44.95395507812499pt"><td style="border-left:solid #000000 0.6000000000000001pt;border-right:solid #000000 0.6000000000000001pt;border-bottom:solid #000000 0.6000000000000001pt;border-top:solid #000000 0.6000000000000001pt;vertical-align:top;padding:5pt 5pt 5pt 5pt;overflow:hidden;overflow-wrap:break-word;"><span style="font-size:11pt;font-family:'Open Sans',sans-serif;color:#000000;background-color:transparent;font-weight:700;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre;white-space:pre-wrap;">Transaction Visibility</td><td style="border-left:solid #000000 0.6000000000000001pt;border-right:solid #000000 0.6000000000000001pt;border-bottom:solid #000000 0.6000000000000001pt;border-top:solid #000000 0.6000000000000001pt;vertical-align:top;padding:5pt 5pt 5pt 5pt;overflow:hidden;overflow-wrap:break-word;"><span style="font-size:11pt;font-family:'Open Sans',sans-serif;color:#000000;background-color:transparent;font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre;white-space:pre-wrap;">Fully Public</td><td style="border-left:solid #000000 0.6000000000000001pt;border-right:solid #000000 0.6000000000000001pt;border-bottom:solid #000000 0.6000000000000001pt;border-top:solid #000000 0.6000000000000001pt;vertical-align:top;padding:5pt 5pt 5pt 5pt;overflow:hidden;overflow-wrap:break-word;"><span style="font-size:11pt;font-family:'Open Sans',sans-serif;color:#000000;background-color:transparent;font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre;white-space:pre-wrap;">Optional (Shielded or Transparent)</td></tr><tr style="height:45.70395507812499pt"><td style="border-left:solid #000000 0.6000000000000001pt;border-right:solid #000000 0.6000000000000001pt;border-bottom:solid #000000 0.6000000000000001pt;border-top:solid #000000 0.6000000000000001pt;vertical-align:top;padding:5pt 5pt 5pt 5pt;overflow:hidden;overflow-wrap:break-word;"><span style="font-size:11pt;font-family:'Open Sans',sans-serif;color:#000000;background-color:transparent;font-weight:700;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre;white-space:pre-wrap;">Market Status</td><td style="border-left:solid #000000 0.6000000000000001pt;border-right:solid #000000 0.6000000000000001pt;border-bottom:solid #000000 0.6000000000000001pt;border-top:solid #000000 0.6000000000000001pt;vertical-align:top;padding:5pt 5pt 5pt 5pt;overflow:hidden;overflow-wrap:break-word;"><span style="font-size:11pt;font-family:'Open Sans',sans-serif;color:#000000;background-color:transparent;font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre;white-space:pre-wrap;">Primary Store of Value</td><td style="border-left:solid #000000 0.6000000000000001pt;border-right:solid #000000 0.6000000000000001pt;border-bottom:solid #000000 0.6000000000000001pt;border-top:solid #000000 0.6000000000000001pt;vertical-align:top;padding:5pt 5pt 5pt 5pt;overflow:hidden;overflow-wrap:break-word;"><span style="font-size:11pt;font-family:'Open Sans',sans-serif;color:#000000;background-color:transparent;font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre;white-space:pre-wrap;">Privacy Centric Alternative</td></tr></tbody></table>

<h2 id="the-bottom-line">The Bottom Line</h2>Bitcoin remains the industry leader, but the "set it and forget it" mentality is being challenged by its most prominent institutional supporters. Jan van Eck's warnings serve as a reminder that technology is never static.&nbsp;If Bitcoin cannot address the twin threats of quantum computing and de-anonymization, the very features that made it successful could become its greatest liabilities.&nbsp;VanEck continues to hold for the moment, though they remain alert to real-time blockchain metrics and the changing landscape of international finance.Explore more insights on Bitcoin’s evolving cryptography and other crypto news at <a href="https://www.delta.exchange/">Delta Exchange.&nbsp;</a>

Digital gold is the term the normies know it by, but within its enthusiast circles, Bitcoin is celebrated for its decentralized structure and proven security. Yet, as the crypto market grows, even its most fundamental strengths are being examined.

Recently, major figures in the traditional financial world have started asking tough questions about the long-term viability of Bitcoin cryptography and foundational technology.

In November 2025, Jan van Eck, the CEO of global investment giant VanEck

Jan VanEck Highlights Bitcoin Encryption Concerns and Privacy Risks