- New proposal aims to protect Bitcoin from future quantum threats
- Older signature types could be phased out over time
- Users may need to upgrade wallets to keep access to funds
- Debate continues over how urgent the quantum risk is
New Plan Targets Long-Term Security Risks
Bitcoin researchers have introduced a proposal called BIP-361 to prepare the network for potential quantum computing threats.
The idea is to gradually move away from older signature systems that could become vulnerable if quantum computers advance far enough.
How the Transition Would Work
The plan suggests a multi-step approach over several years. In early stages, new transactions to older address types could be restricted.
Later phases could go further by blocking transactions that rely on outdated signatures entirely. This means funds that are not upgraded could eventually become unspendable.
Why This Matters
A key concern is that many older Bitcoin addresses already expose their public keys. If quantum computers become powerful enough, attackers could theoretically derive private keys and access those funds.
Some estimates suggest more than a third of Bitcoin could fall into this category.
Ongoing Debate Around Quantum Risk
Not everyone agrees on how urgent the issue is. Some analysts believe the threat is still far away, while others warn it could arrive sooner than expected.
As with many Bitcoin upgrades, any major change would likely take years to coordinate across the network.
