Ledger’s CTO Charles Guillemet believes that artificial intelligence poses a significant threat to cryptocurrencies by lowering the costs of cyberattacks and making them easier to execute. He advises operating under the assumption that many systems will eventually prove to be vulnerable.

For a long time, security was built on an imbalance: breaching a system had to be more difficult and expensive than the potential rewards of the hack. However, with the advent of AI, tasks that previously required months of work by highly skilled specialists can now be completed in seconds—often by simply phrasing a request to a chatbot correctly.

Guillemet warns that AI-generated code carries substantial risks. As more developers rely on AI assistants, vulnerabilities can spread more rapidly. This is particularly dangerous for the crypto industry, where code manages vast sums of money. He believes that blockchain code today must be flawless because neural networks can exploit vulnerabilities in seconds.

In light of these new threats, crypto protocols need to rethink their approach to security. Guillemet urged developers to implement formal verification—the use of mathematical proofs to verify code. He considers this method more reliable than traditional audits, which may fail to detect certain errors.

The CTO also advised regular users to maintain a critical attitude toward the security of the platforms they use. He recommended not trusting crypto platforms without additional verification, assuming they might fail, and keeping sensitive data—including seed phrases—offline. He also emphasized the importance of using hardware wallets more frequently.

Looking ahead, Guillemet predicts a divide in the blockchain space. Critical systems, such as wallets and core protocols, will invest heavily in security to adapt to new threats. However, a large portion of software may fail to keep up with the rapidly increasing complexity and frequency of AI-driven attacks.

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