Crypto·May 18, 2026·4 min read
Bitcoin Faces Greater Quantum Computing Risk Than Ethereum, Citi Warns
💡 Citi analysts warn that Bitcoin faces a higher risk from quantum computing than Ethereum
The rapid development of quantum computing technology has raised concerns about its potential impact on cryptocurrencies. This week, Citi analysts weighed in on the risk posed by quantum computing to two of the largest cryptocurrencies by market capitalization: Bitcoin and Ethereum.
Bitcoin Under Greater Threat Bitcoin faces a greater risk from quantum computing than Ethereum, according to Citi analysts. This is because Bitcoin's **Proof-of-Work (PoW)** consensus mechanism relies heavily on **hash functions**, which are vulnerable to **quantum attacks**. In contrast, Ethereum is transitioning to a **Proof-of-Stake (PoS)** consensus mechanism, which is less susceptible to quantum attacks.
Ethereum's Transition to PoS Ethereum's transition to PoS is expected to reduce its vulnerability to quantum attacks. However, the process is complex and will likely take several years to complete. Meanwhile, Bitcoin's reliance on PoW makes it more vulnerable to quantum attacks, which could potentially allow **bad actors** to **launch 51% attacks** on the network.
Quantum Computing Risk Assessment Citi analysts have assessed the quantum computing risk to both Bitcoin and Ethereum. They note that Bitcoin's **hash rate** is currently too high to be vulnerable to quantum attacks, but this could change in the future. In contrast, Ethereum's lower hash rate makes it more susceptible to quantum attacks. Nevertheless, the analysts conclude that both cryptocurrencies face a significant risk from quantum computing, and investors should be aware of this risk when making investment decisions.
What It Means for Investors The quantum computing risk to Bitcoin and Ethereum is a significant concern for investors. While Ethereum's transition to PoS reduces its vulnerability to quantum attacks, Bitcoin's reliance on PoW makes it more susceptible. As quantum computing technology continues to develop, investors should monitor the situation closely and consider the potential impact on their investments. Do you think Bitcoin will hold above $50,000? Share your view in the comments.
#quantum computing#bitcoin#ethereum#cryptocurrency#investing
0 Comments
Sign in or create a free account to join the conversation.
Loading comments…
More in Crypto
Crypto
Coins.ph Expands Cryptocurrency Payment Options via Philippines QR Payment Network
4 min · May 20, 2026
CryptoBitcoin, Ethereum Prices Tumble as Global Market Sentiment Remains Bearish
4 min · May 20, 2026
CryptoBitcoin and Ethereum Prices Slip This Week Amid Global Market Volatility
4 min · May 20, 2026