Justin Sun Issues Bitcoin Quantum Warning as TRON Targets Quantum-Resistant Upgrade

TRON founder Justin Sun revived the discussion of whether the largest blockchains would be quantum-ready, saying in a speech at <a href="https://xpertsstudio.com/bitcoin-loses-its-price-anchor-after-6-4-billion-options-expiry-will-the-fed-replace-it/” title=”Bitcoin Loses Its Price Anchor After $6.4 Billion Options Expiry. Will the Fed Replace It?”>Bitcoin Asia 2026 in Hong Kong on August 27 that quantum risks are not limited to crypto. He said Bitcoin might need more time to organize a consensus on how to reduce the threat.

Justin Sun Warns Bitcoin About the Quantum Computing Threat

Justin Sun quantum warning was in response to comments made by Sun in April contrasting TRON post-quantum plan with the slow deliberative nature of Bitcoin and Ethereum. Sun argued quantum security should be a built-in feature as opposed to something mainly discussed.

What Did Justin Sun Say About Bitcoin’s Quantum Risk?

However, Sun claims that his concern is not that quantum computers are able to break Bitcoin now, but that Bitcoin Network should act before quantum computers become powerful enough to do so. At Bitcoin Asia, he also spoke about the challenge of coordinating miners, exchanges, and others in Bitcoin’s decentralized network.

This limitation was the focus of the Justin Sun Bitcoin warning, which stressed the time required to counter a future threat, not the possibility of a quantum attack existing at this time. TRON, meanwhile, has been researching solutions for quantum resistance for over a year, Sun said. 

Why Could Quantum Computing Threaten Bitcoin?

Most Bitcoin quantum threat scenarios are related to public-key cryptography. According to Bitcoin Optech, ECDSA public keys can theoretically be broken with Shor’s algorithm on a quantum computer of sufficient scale. An attacker may then use this to derive the private key from the public key.

Nevertheless, the threat that Grover’s algorithm poses to hash functions is somewhat less severe: it reduces the effective security of SHA-256 to roughly 128 bits of security, rather than eliminating security entirely as Shor’s algorithm does for other protocols.

Bitcoin quantum computing is one possible risk to Bitcoin Network, with the only uncertainty lying in the timescale on which quantum computers will be developed that are powerful enough to carry out that attack.

TRON Targets a Quantum-Resistant Upgrade by the End of 2026

At the Bitcoin Asia conference on August 27, Justin Sun stated that TRON plans to upgrade the blockchain to quantum-resistant security across the entire network by the end of 2026. Sun stated that TRON has been developing post-quantum technology for more than a year, and has a quantum-resistant address in place on the testnet.

This is later than Sun’s original timetable in April, when the Justin Sun TRON plan called for a testnet in Q2 and mainnet deployment in Q3 2026.

What Is TRON’s Quantum-Resistant Upgrade?

TRON quantum-resistant upgrade will replace or expand TRON’s current cryptographic signature scheme with post-quantum resistant digital signature schemes that are resistant to sufficiently powerful quantum computers. In April, Sun said TRON intends to deploy NIST-standard post-quantum resistant digital signature schemes on TRON’s mainnet.

TRON has implemented FN-DSA-512 as the first post-quantum signature algorithm on its Nile testnet. TRON further claims to implement another post-quantum digital signature algorithm, ML-DSA-44. The test implementation of post-quantum signatures in TRON includes transaction signatures, block signatures, peer-to-peer handshakes, and signature verification in the TRON Virtual Machine.

When Will TRON Become Quantum-Resistant?

Sun’s latest public goal for this upgrade is the end of 2026. It is unknown if this goal’s Q3 mainnet deadline will be met, and full TRON quantum resistance may be delayed by several months.

However, a target date is not a guarantee that the migration is complete; at the current date, the post-quantum implementation is being tested on the Nile testnet, and questions regarding migration to the mainnet and backwards compatibility remain.

What Has TRON Already Done to Prepare for Quantum Attacks?

The most advanced post-quantum development effort of TRON is its post-quantum testnet, which runs on TRON’s Nile testnet. The change numbered 20628 to enable post-quantum signatures was completed on July 2.

However, we have seen gaps, including in the area of gas-free transfers, BIP-39 seed-phrase recovery, and Ledger hardware wallets for post-quantum accounts. Therefore, it would be inappropriate at this time to call fully TRON quantum safe. It is awaiting testing for security prior to the mainnet switch.

Why Is Bitcoin’s Transition to Quantum Resistance So Difficult?

Bitcoin’s decentralized nature may make cryptographic upgrades hard to implement in practice, since they would need to reach consensus among Bitcoin developers, node operators, miners, wallets, and other infrastructure. Thus, Bitcoin quantum resistance is a technical and coordination challenge.

Why Does Bitcoin Need Consensus to Upgrade?

Some proposals to improve Bitcoin would require modifying one or more of its consensus rules. BIP-360 proposes to add an output type, Pay-to-Merkle-Root (P2MR), which would be secure against long-exposure quantum attacks. This would require a soft fork to implement.

Another contentious topic is what to do with coins already under threat: BIP-361 proposes deprecating legacy ECDSA/Schnorr spending and creating a quantum-safe rescue mechanism for everyone, immediately applicable to users who did not upgrade their wallets to new standards.

How Could Bitcoin’s Existing Cryptography Be Affected?

The main Bitcoin quantum computing risk involves elliptic-curve cryptography. BIP-360 states that a cryptographically relevant quantum computer running Shor’s algorithm could derive private keys from public keys. This would compromise signatures that authorize Bitcoin transactions.

Although P2MR protects against long exposures, not all quantum attacks are reduced. BIP-360 acknowledges that situations where keys could be publicly exposed and a transaction is still pending confirmation may require application of post-quantum signatures.

What Happens to Bitcoin Addresses Vulnerable to Quantum Attacks?

BIP-360 describes P2PK, reused outputs, and Taproot P2TR outputs as particularly vulnerable, but other output types can have similar weaknesses once their scripts reveal their public keys.

It remains unclear whether unspent funds in these addresses will necessarily be treated differently. BIP-361 proposed to stop payments to vulnerable addresses before the restriction on legacy signatures, but this is still a proposal.

This leaves a difficult crypto quantum threat trade-off: vulnerable coins could eventually face quantum theft, while restrictive migration rules could complicate legitimate access to unmigrated funds.  

How Quantum Computing Could Threaten Crypto

The main crypto quantum threat comes from quantum algorithms that could break the cryptography protecting cryptocurrency assets. For Bitcoin, the main threat is elliptic-curve signatures, because a quantum computer powerful enough to run Shor’s algorithm could find the private key from the public key.

This capability does not exist today, and the NIST observes that no cryptographically relevant quantum computer has been built, but post-quantum migration may take years.

What Is a Quantum Attack on Bitcoin?

Another potential quantum attack is discovering the relationship between a Bitcoin public key and its private key. If an attacker is able to obtain the quantum computer power to compute the private key from its public key, they would be able to create a valid signature and spend the coins.

This is more likely for outputs whose public key is already available on the blockchain, such as P2PK, outputs belonging to Taproot, and reused addresses. Inputs in hashed-key addresses are more secure until their public keys are revealed through spending.

What Is the “Harvest Now, Decrypt Later” Threat?

One scenario of a potential attack is “harvest now, decrypt later”: attackers could capture encrypted data and decrypt it later when quantum computers are available. NIST cites this threat as a reason for organizations to adopt post-quantum protocols before cryptographically relevant quantum computers become available.

For crypto, however, the public blockchain creates a different type of problem: public keys never change, and they never disappear. This may give future adversaries targets of opportunity with more powerful quantum computers.

When Could Quantum Computers Break Crypto?

While there is no consensus on “Q-Day”, NIST says that it is unknown when a cryptographically relevant quantum computer will be built, but work continues to reduce the theoretical re

Current hardware is far from breaking Bitcoin-scale keys: a 2026 experiment broke an EC 15-bit key. However, since no quantum computer is available today to break Bitcoin-scale cryptography — which uses 256-bit keys —, there are now several proposals for quantum-resistant cryptocurrency, since the threat is not yet operational while developing a fix would take years. 

TRON vs. Bitcoin: Which Blockchain Is Better Prepared for Quantum Computing?

TRON has a clearer roadmap, with Justin Sun announcing in April that the network would be getting NIST-standard post-quantum signatures on its mainnet.

However, as Bitcoin is still active with protocol-level solutions (with some defensive measures already explored by researchers and companies), their comparison (with Ethereum) is a comparison in terms of implementation timelines rather than proof of quantum-resistance on either blockchain.

How Fast Is TRON Moving Toward Quantum Resistance?

With Sun’s announcement of TRON quantum resistant plan in April, the coding was tested in 2026. The most recent features and governance proposals are tested in a separate TRON test network called Nile before being deployed on TRON mainnet.

Nonetheless, testing is not the same as full protection. Sun’s stated purpose is to bring up the mainnet: TRON’s strength is not the risk of migration but its ability to deploy and develop.

Why Does Justin Sun Believe TRON Can Move Faster Than Bitcoin?

According to Sun, TRON network is less reliant on the slower and more vulnerable major networks, as they debate how to process vulnerable addresses and migration. At the launch of the initiative, Sun stated that quantum security should be regarded as a protocol feature, and TRON appears to be moving faster than Bitcoin.

With Bitcoin, greater controversy arises from reconciling decentralized consensus with legacy holdings. A panel of cryptography experts convened by Coinbase reached a consensus that post-quantum signatures should be prepared in advance, but did not recommend a specific solution for whatever millions of BTC▲$62,630.00 could be at risk.

How Do Ethereum and Solana Compare?

Ethereum is also moving to address this. Ethereum Foundation established its Post-Quantum Security team in January 2026, which is developing quantum-safe account authentication and validator signatures and data-layer protection mechanisms, with target infrastructure deliverables around 2029.

Plans for action are also in place at Solana. The Anza and Firedancer developers at Solana Foundation are investigating migration paths, and the Winternitz Vault is an opt-in quantum-resistant primitive. Its roadmap cited further research, post-quantum wallets, and migration, if quantum computers become a real threat.

Unlike TRON’s advanced timeline, the timelines for Ethereum and Solana are longer or condition-based, and none of the post-quantum projects can be said to have a completed algorithmic post-quantum migration on a whole network basis. 

Could TRX Benefit From TRON’s Quantum-Resistant Upgrade?

TRON’s post-quantum upgrade is an additional layer of security for a network that has seen billions in stablecoin and general payment volume, and Justin Sun has suggested that NIST standard post-quantum signatures will eventually be deployed on TRON’s mainnet, but this does not guarantee TRON will see a surge in demand or TRX▲$0.3220 price.

Could Quantum Security Boost TRX Adoption?

If successful, the update will fix a common security vulnerability that would otherwise allow attackers to target users and applications on TRON blockchain. According to data from TRONSCAN, there are currently 11.6 million transactions daily on TRON Network, averaging $22.15 billion USDT▲$0.9991 transferred in 30 days.

At this point in time, there is no evidence that post-quantum security alone will materially increase TRX adoption, with the adoption contingent on its successful deployment to the mainnet and whether users, developers, and institutions begin to see quantum protection as an important feature when selecting blockchain infrastructure.

Could the Upgrade Strengthen TRON’s Long-Term Value Proposition?

If implemented as planned, the upgrade is likely to give TRON an early advantage by implementing post-quantum signatures before quantum resistance is possible. Sun has called the development a precautionary measure to secure users against quantum computer advancements down the line.

For TRX, the narrative around fundamentals is that more than 15.26 billion transactions have been conducted on TRON and there is a very large stablecoin economy in the ecosystem.

What Could Drive the Next TRX Rally?

For the next few weeks, TRX price predictions depend largely on the state of the markets and any TRON-specific catalysts that could come along. On 27 August, TRX price stood at around $0.338. According to CoinMarketCap, TRON’s recent gain can be attributed to the general crypto market’s movement along with network development and the accumulation of TRON’s treasury.

Nevertheless, in order for a more sustainable rally to emerge, a better outlook for the crypto market overall, additional on-chain growth, and successful network upgrades would be required. According to onchain data from TRONSCAN, growth in TRX supply has fallen 1.24% annually on average since March 2021, though minor daily increases in supply have occurred recently.

The possibility for a successful quantum-resistant rollout to catalyze appreciation for TRX is a further driver for this thesis, but is not established or observable in data at the moment.

TRX Price Prediction After Justin Sun’s Quantum Warning

TRX was trading at around $0.339 with a market capitalization of nearly $32.2 billion on August 28, up about 1.5% over the past 24 hours but still about 23% below its all-time high of $0.4407 in December 2024. 

The latest Justin Sun crypto security announcement may have played a role, although recent price moves have reflected a general recovery in the crypto market.

Bullish Scenario for TRX

If the bullish TRX price prediction is to succeed, this recovery must hold. The $0.333 to $0.336 region acted as support in the present. If price maintains above $0.344, there may be potential for a rise to $0.35.

In addition to technical momentum, social media sentiment may be influenced by TRON’s continued network activity and efforts to become a quantum-resistant blockchain. Sun said on August 27 that a plan to upgrade TRON to quantum-resistant technology is on track to be completed by the end of the year after more than a year’s development.

Bearish Scenario for TRX

On the downside, losing the recent support levels, along with continuing weakness in the rest of the crypto market, would be damaging. Technical analysis has highlighted $0.333 as immediate support. If this support breaks, it would be a bearish signal.

The quantum upgrade itself does not guarantee price appreciation, and the success of this upgrade is uncertain. In addition, TRX continues to be susceptible to fluctuations in Bitcoin price and the crypto market in general.

Key TRX Price Levels to Watch

Support ranges from $0.333 to $0.336, with resistance beginning around $0.344. If resistance breaks, focus shifts to $0.35. A wider breakout would then make the higher levels relevant.

With the other benchmark being TRX ATH of $0.4407, TRX market has to gain better momentum for prices to regain the ATH, as the market is still almost 23% off from its ATH. 

What Happens Next for TRON and Bitcoin?

Although TRON’s roadmap indicates it will transition to post-quantum security by 2026, and while the post-quantum signature scheme has already been deployed on the testnet, Bitcoin’s development branch has not yet reached a consensus on a migration scheme or on how to handle old coins when transitioning Bitcoin ledger to post-quantum security.

When Could TRON Complete Its Quantum-Resistant Transition?

At the Bitcoin Asia conference on August 27, co-founder Justin Sun stated TRON intends to make the whole network quantum-resistant by late 2026, having missed the prior Q3 2026 target mentioned in April. This followed the Nile testnet using post-quantum signatures in July.

Though the timeline remains a goal, the testnet’s lack of implementations for things such as gas-less transactions, seed-phrase recovery, and Ledger support point to additional work necessary before TRON can meaningfully claim that the transition is complete on the mainnet.

Will Bitcoin Eventually Adopt Quantum-Resistant Cryptography?

Bitcoin developers are considering what features to include in the migration. For instance, the BIP-360 proposal would introduce a new output type known as a P2MR to defend against long-exposure attacks. That being said, Bitcoin would likely need post-quantum signatures to defend against more complex short-exposure attacks.

BIP-361 also specifies that older scheme types’ legacy ECDSA and Schnorr signatures will be phased out when the post-quantum output type is available. Bitcoin quantum resistance remains as of BIP-361 a development and governance process, rather than an adopted upgrade to Bitcoin Network.

Could Quantum Resistance Become a Major Crypto Narrative in 2026?

Post-quantum security around blockchain technology gained attention in 2026, with Ethereum blockchain creating a Post-Quantum Security team in January, and conducting regular interoperability work, with Solana blockchain developers also looking into post-quantum migration possibilities.

TRON’s timeline, particularly an end of year implementation, shows the quantum computing issue is being pursued by Bitcoin through other proposals. That activity shows that Justin Sun quantum computing concerns are part of a broader industry shift, although it is too early to establish quantum resistance as a dominant market narrative rather than an increasingly important security theme.  

Is Bitcoin Vulnerable to Quantum Computers?

With a sufficiently powerful quantum computer, it would be possible to use Shor’s algorithm to derive a private key from a corresponding public key.

Is TRON Quantum-Resistant?

Not necessarily. Although post-quantum signatures were enabled on TRON’s Nile testnet in July 2026, it does not mean the mainnet has been upgraded as well.

What Is Justin Sun’s Quantum-Resistant TRON Plan?

There are plans to add post-quantum cryptographic protection to TRON infrastructure by replacing signature schemes vulnerable to quantum attacks. Testing on the Nile testnet precedes deployment on the entire network.

Currently, TRON expects to complete its general quantum-resistant transition by the end of 2026, with this date being a target rather than a finalized mainnet milestone.

Can Quantum Computing Destroy Bitcoin?

Not with current technology. Future cryptographically relevant quantum computers could break signatures used in Bitcoin, but proposals like BIP-360 and BIP-361 have been worked on to minimize this risk.

Which Cryptocurrency Is Best Protected Against Quantum Computing?

There is no “best-protected” major cryptocurrency, and major blockchains have not yet fully migrated to post-quantum resistance, although TRON is testing post-quantum signatures, Ethereum and Bitcoin are exploring post-quantum transition scenarios, and Solana is also exploring post-quantum solutions.

Source: bitcoinfoundation.org