Post
Topic
Board Development & Technical Discussion
Re: Bitcoin must upgrade or fall victim to quantum computing in 5 years
by
bitcoinmaze
on 20/06/2025, 07:44:16 UTC
This is just a random news I get but people are really talking about it.

I have just read about it not long ago but I have also read somewhere before that by 2030, it is possible that ECDSA becomes vulnerable to quantum computing. This is 2025 which means 20230 is just 5 years away from now.

What do you think about this disturbing news, I have been read more than 5 news about this and I saw another one today. What are bitcoin developers doing about it?

If you need the source that I get today's news from, I can post it which has the the title that I have as the title on this thread.


Thanks for bringing this up—quantum computing and its potential impact on Bitcoin is definitely a topic worth paying attention to, even if it’s still largely theoretical for now.

You're right that some experts suggest that by the early 2030s, certain quantum advancements could pose a threat to cryptographic algorithms like ECDSA, which Bitcoin currently uses for its digital signatures. However, it's important to note a few things:

The threat isn't immediate. As of 2025, no quantum computer exists that can break ECDSA at the scale Bitcoin uses. The tech is progressing, but there's still a significant gap between where we are now and where a real threat would exist.

Bitcoin devs are aware. The core developers and researchers in the Bitcoin ecosystem are actively monitoring the situation. There have already been discussions and proposals around post-quantum cryptography (PQC), and if needed, Bitcoin can undergo a soft fork or upgrade to support quantum-resistant signature schemes like Lamport signatures, Schnorr variants, or others.

Bitcoin's design allows for flexibility. While changes to Bitcoin are slow and conservative (as they should be), it is technically possible to transition to quantum-safe cryptography before the threat becomes real. What's important is to act before quantum computers are actually capable of breaking current cryptography, not necessarily years in advance.

Please do share the source you mentioned—it’s always helpful to see how the media is framing this, and whether it's a solid technical report or just headline hype.