Optimum Co-Founder Médard: Encrypting 10% of Data Shields Ethereum (ETH) From Quantum Attacks

Quantum Safety Without Quantum Machines

Blockchains can be made safe against quantum computers with better mathematics rather than exotic hardware, according to Muriel Médard, co-founder of Optimum and professor at MIT. In an argument published this week, Médard warned that sophisticated actors, including nation-states, are already collecting encrypted data with the sole aim of unlocking it once quantum computing matures — a strategy known as “harvest now, decrypt later.” Because organizations are legally required to retain identity logs, records and other sensitive data for years, that stored information stays exposed to future decryption. Blockchains are uniquely exposed, she argues, because they permanently secure money, identity, contracts and governance rather than transient messages, leaving the foundations of decentralized finance open to tomorrow’s quantum-powered attacks if defenses are not built now.

The technical backdrop is well established. Traditional cryptography such as RSA rests on the difficulty of factoring very large prime numbers, but MIT’s Peter Shor showed in 1994 that a quantum computer could solve those problems exponentially faster. blind signing-style cryptographic techniques and the broader field of post-quantum cryptography (PQC) emerged in response, hiding data in ways that force attackers into an infeasible number of guesses. The McEliece cryptosystem, introduced in 1978, is still considered one of the strongest PQC approaches, though encrypting and decrypting everything under it is so computationally heavy that deployment at chain scale has been impractical.

Médard points to defenses already underway across the sector. The Ethereum Foundation has backed ZKnox, a research group building open-source post-quantum solutions for Ethereum that could also cut gas fees by up to 12×, while Algorand secures its entire chain history with FALCON signatures. Her own alternative is Random Linear Network Coding (RLNC), developed over two decades in her MIT lab: data is split into coded equations that can be mixed and recombined in transit, and encrypting roughly one in ten of those equations — about 10% of the dataset — extends quantum-safe protection to 100% while trimming the computational burden by around 90%. MIT has also synthesized RLNC into hardware chips, and Médard frames the method as a “quantum-safe memory layer” that can sit at any level of the Web3 stack without every transaction being encrypted end-to-end.

Web3 Gaming’s Token-First Era Ends

The quantum debate is unfolding as another corner of the industry absorbs a parallel lesson about substance over packaging. Web3 gaming spent years promising that blockchain would transform what it means to own, earn and trade inside games, yet too many projects proved the economics before they proved the game. The pattern that defined the first generation — a token launches, an NFT collection follows, a reward loop appears — depended on novelty, and players tolerated simple gameplay because earning was the entertainment. Once the token price became the main reason to play, economies turned fragile, and users exited the moment rewards fell.

The sector remains active but has lost its automatic funding. An August 2026 industry tracker counted more than 2,300 gaming dapps and a multi-billion-dollar gaming-token market spanning chains such as Polygon (POL), while separate monthly reporting found very little traditional venture funding flowing into the sector over the same period. Established operators like Animoca Brands still run major gaming and digital-ownership businesses, but capital is more selective and the mere existence of a token no longer impresses players. Stronger titles increasingly hide the blockchain: browser logins and social accounts arrive before any wallet, treating the chain as infrastructure rather than identity — a philosophy closer to infrastructure-first networks like the Internet Computer (ICP).

Attention is also shifting from in-game economies to the creator layer around games. Streamers, clip editors, modders and community organizers generate enormous economic activity, but their payments are fragmented, campaigns are hard to coordinate and reward systems are opaque — problems much closer to what blockchain can realistically fix. Wanted Network, whose WNTD token powers this thesis, has built its Missions system around structured creator challenges with defined objectives, submission rules and reward opportunities. Creators build reputation through a metric called Heat and earn WNTD-powered rewards, while the advertiser model is designed to route campaign spending into market purchases of WNTD and token burns, a utility-first positioning reminiscent of creator-economy tokens like Render (RENDER). Whether it works will depend on genuine activity rather than launch mechanics such as an IDO or reward loops engineered to exploit FOMO. Readers tracking the market in real time can follow live spot and futures prices on MEXC.

From Promises to Engineering

Read together, the two stories trace one arc: an industry replacing promises with engineering. Médard’s core claim — that there is nothing quantum about post-quantum security, only pen-and-paper coding — lands in a market where institutions will not place financial, identity or governance systems on public chains until they are provably future-proof. The primary record behind that claim is her own published column and the MIT Network Coding and Reliable Communications Group materials supporting it, which spell out the 10%-protects-100% mechanism in full. The same demonstrated-utility standard now governs gaming. Our read at COINOTAG: the projects that survive this filtering cycle will be those that stop asking users to care about the technology itself.