Key Highlights
- VanEck CEO Jan van Eck questioned whether Bitcoin’s elliptic-curve cryptography (ECC) can survive a quantum computing breakthrough.
- He said Bitcoin’s public ledger exposes user activity, pushing some long-time holders to explore privacy coins like Zcash.
- Industry voices like Vitalik Buterin also fear quantum tech could weaken the cryptography behind major blockchains.
VanEck CEO Jan van Eck has stirred a new debate in the crypto world by openly questioning whether Bitcoin’s encryption and privacy tools will be strong enough to survive a future dominated by quantum computing.
In an interview on CNBC, he warned that future quantum breakthroughs could weaken the cryptography that protects Bitcoin transactions. He said VanEck still supports Bitcoin today but would reconsider that position if the technology ever failed. “We will walk away from Bitcoin if we think the thesis is fundamentally broken,” he said.
Van Eck added that some concerns inside the Bitcoin community are not widely known. “Is there enough encryption in Bitcoin? Because quantum computing is coming,” he said. Experts agree that a powerful quantum computer running Shor’s algorithm could, in theory, break the Elliptic Curve Cryptography (ECC) that secures the network’s digital signatures.
He also pointed out that Bitcoin’s public ledger allows anyone to track transactions, which is why some long-time users are looking at privacy-focused alternatives like Zcash. “When you move money around on the Bitcoin blockchain, you can see it,” he said.
Zcash (ZEC), a privacy-focused cryptocurrency using zero-knowledge proof technology (zk-SNARKs), has seen a sharp rise in interest as trading volumes surge. The coin recently jumped above $700 and has moved back into the top 20 cryptocurrencies.
It now has one of the highest trading volumes after Ethereum and Solana. Even with small daily drops, ZEC is still up over 200% this month.
Debate grows over Quantum risk
His comments reflect broader worries surfacing across the industry. Ethereum co-founder Vitalik Buterin recently warned that “elliptic curves are going to die” if quantum machines advance quickly.
He noted that current cryptographic systems securing blockchains could become vulnerable once quantum computers reach sufficient scale, potentially allowing attackers to break signatures and access funds.
BlackRock, the world’s largest asset manager, has also included quantum computing as a serious long-term risk in its Bitcoin ETF filings.
Researcher Scott Aaronson has suggested it is “a live possibility” that a powerful quantum computer could emerge sooner than expected. Others, however, believe the threat is still decades away.
Not everyone agreed with Van Eck’s framing. Some longtime Bitcoin advocates pushed back sharply. JAN3 CEO Samson Mow dismissed the idea that Bitcoin supporters are turning to privacy tokens, writing, “You shouldn’t be speaking on anything Bitcoin whatsoever… stay in your lane.”
Bitcoin’s price dip
Van Eck also said Bitcoin’s current downturn fits the usual four-year pattern tied to the halving cycle. He described 2026 as a likely “big negative year,” and suggested investors are already positioning for that.
Bitcoin has fallen more than 30% from its early October record, sliding to just above $82,000 on Friday before briefly rebounding to around $87,000 on Monday.
Overall, his comments highlight a question that is becoming harder for the industry to ignore: whether Bitcoin’s original design, built long before today’s quantum developments, will remain secure and private in the decades ahead.
Also Read: Satoshi Nakamoto Loses $42 Billion as Bitcoin Drops Over 30% From Its Peak
