A hacker turned defender warns that most of the sector is unaware of the existential threat posed by cryptography: quantum computing.

David Carvalho, CEO of the post-quantum infrastructure company Naoris Protocol, started hacking at the age of 13, experimenting with spam emails to attract job offers and grab the attention of employers.

Over time, that curiosity transformed into a formal job in the cybersecurity field, where he used the same skills to defend systems instead of probing them. Nowadays, he builds systems resistant to quantum computing for decentralized networks and claims that the cryptographic foundations of blockchains like Bitcoin and Ethereum are dangerously outdated.

"The cryptography behind almost all chains is as weak as the rest of the cryptography in the world," Carvalho told Cointelegraph. "Quantum computing is going to end it all, just like meteorites ended the dinosaurs."$BNB