# Vitalik Buterin warns AI could break lattice cryptography in two years

> AI may crack Ethereum's security within two years, says Vitalik Buterin.
- Title: Vitalik Buterin warns AI could break lattice cryptography in…
- Summary: AI may crack Ethereum's security within two years, says Vitalik Buterin. Vitalik Buterin warns AI could break lattice cryptography within two years, urging…
- Keywords: vitalik buterin, lattice cryptography, ai risk, post-quantum cryptography, ethereum, sphincs+, hash-based signatures, wots, startups, business, Vitalik, Buterin
- Source: Startup Fortune — https://startupfortune.com/vitalik-buterin-warns-ai-could-break-lattice-cryptography-within-two-years
- Published: 2026-10-18T21:30:02+00:00
- Read time: 1 min
- Topics: vitalik buterin, lattice cryptography, ai risk, post-quantum cryptography, ethereum, sphincs+, hash-based signatures, wots, startups, business
## Vitalik Buterin's warning
Vitalik Buterin says lattice cryptography could be broken by AI within two years.

> there is a good chance that the concrete security of lattices will take serious hits from the next two years of ai math
## Why AI poses a threat
AI could compress decades of math research into months, potentially breaking lattice problems.

> if ai will bring us 50 years of math in two years then that 50 years of math may very plausibly include a serious jump in the ability to break lattice problems
## Real-world precedent
The general number field sieve algorithm forced RSA key size increases after cracking rsa keys.

> the general number field sieve a factoring algorithm that sharply cut the effort needed to crack rsa keys
## Ethereum's fix
Ethereum plans to switch to hash-based signatures like SPHINCS+ for post-quantum security.

> the ethereum foundation already lists among nist's approved post quantum standards
## Size challenge
Hash-based signatures are 3,000 bytes versus BLS's 96 bytes, requiring aggregation solutions.

> hash based signatures run roughly 3000 bytes against bls s 96
## Charles Hoskinson's pushback
Charles Hoskinson calls Buterin's warning 'panic' and says lattice methods have held for 40 years.

> calling buterins warning panic and noting that lattice based methods have held up for roughly forty years of cryptanalysis
## The test ahead
Whether lattice cryptography holds or breaks within two years will determine security for ethereum.

> whether a lattice problem that's held for four decades finally gives way or quietly keeps holding
## Key takeaway

Vitalik Buterin warns AI could break lattice cryptography within two years, urging faster migration to hash-based signatures for Ethereum.