Justin Sun says Tron post-quantum cryptography is live on testnet

What happened

Justin Sun, founder of the Tron network, said the network's post-quantum cryptography is now live on testnet, in a post on X on Saturday. He said the team is ready to bring quantum resistance to mainnet at any time. He added that TRON is set to be one of the few major blockchains that is quantum-resistant before Q-Day, which he described as the day quantum computing becomes capable of breaking current security standards. Sun said the work is meant to keep user assets secure.

Sun also discussed the work at TOKEN2049 Singapore on October 8, where he said Tron has made progress toward post-quantum readiness. End-to-end post-quantum signature support is deployed on the Nile testnet, according to the report. TRON DAO took part in TOKEN2049 Singapore as Title Sponsor.

Why it matters

Developers have increasingly focused on post-quantum cryptography because sufficiently powerful quantum computers may eventually break the elliptic-curve cryptography used to secure Bitcoin, Ethereum and many other blockchain networks. A testnet deployment is an early step, and the reports give no date for a mainnet launch.

For Tron, the stakes are its user base and the assets on the chain. As of October 2026, Tron holds the largest circulating supply of USDT, which exceeds $94 billion. TRONSCAN data also shows more than 407 million user accounts, over 15 billion transactions and more than $28 billion in total value locked. A change that touches signatures would sit under that activity.

Other networks are working on the same problem. Earlier this year, a Strategy-led consortium pledged $15 million to fund Bitcoin quantum security research, the Ethereum Foundation published a proposal for migrating accounts to quantum-resistant cryptography and Algorand outlined plans to introduce quantum-resistant accounts by 2027. Separately, Coindesk reported on July 28 that security company AmericanFortress had unveiled a cryptographic plan to protect crypto wallets from future quantum attacks without requiring users to move funds, rotate keys or change wallet addresses.

What the data shows

Tron's reported scale, as of October 2026: USDT circulating supply on the network exceeds $94 billion, TRONSCAN data shows more than 407 million user accounts and over 15 billion transactions, total value locked is more than $28 billion. The Strategy-led quantum research pledge was $15 million.

What is still unclear

• Sun said Tron is ready to bring quantum resistance to mainnet at any time, but the reports give no date or timeline for that launch.
• The AmericanFortress plan was published in a technical paper on the Cryptography ePrint Archive, and the paper has not yet been peer-reviewed.
• The reports do not say whether independent auditors have reviewed the testnet deployment that Sun described.

Questions readers ask