Citi analysts published a research note this week concluding that quantum computing presents a greater risk to Bitcoin than to Ethereum. The finding, aimed squarely at institutional holders, suggests those with large Bitcoin positions should pay closer attention to the developing threat.
What Citi's note says
The research note from the Wall Street bank draws a clear distinction between the two largest cryptocurrencies. According to the analysts, quantum computing — a technology that could eventually crack the cryptographic foundations of digital assets — is more dangerous for Bitcoin than for Ethereum. The note does not single out a specific timeline or attack vector, but it flags the asymmetry as a concern for institutions.
Why the gap matters
By singling out Bitcoin, Citi signals that not all crypto assets face the same quantum exposure. For Ethereum, the analysts see a relatively lower risk profile. That distinction could matter as quantum computing inches closer to practical relevance. The note reminds institutional investors that the threat is not uniform and that due diligence on network resilience matters.
Institutional concern
The warning is particularly pointed for institutional Bitcoin holders. Large funds, endowments, and corporate treasuries that have allocated to Bitcoin may need to reassess their risk models. While the technology is likely years away from breaking current cryptography, the note argues that the disparity warrants attention now. Citi's analysts did not offer specific mitigation strategies in the note, but the message is clear: don't assume the risk is equal across the board.
The research note arrives as quantum computing continues to make incremental progress. No concrete vulnerability has been exploited, but the theoretical risk has been part of crypto discourse for years. Citi's move to issue a formal alert puts the conversation directly in front of the institutional audience that matters most to Bitcoin's market depth.
For now, the note leaves a central question unanswered: how soon, and how fast, should the Bitcoin network upgrade its cryptography? That timeline remains uncertain, but the Citi analysts have put a number on the relative risk — and Bitcoin comes out higher.
