Ethereum Foundation researcher Justin Drake has urged the industry to start planning for "bunker mode". In the worst case, AI could break the math behind Bitcoin and Ethereum wallet signatures in months, not years. The warning landed in a week when bitcoin slid to $82,300, and the market is reading it alongside the macro headlines.
What Drake actually proposed
He posted on X on Wednesday, and the thread drew almost 4 million views. Drake recommends gradually moving funds to fresh addresses whose public keys have never appeared onchain and stay hidden behind a hash. Large holders, he argues, should go first.
The logic is simple. Transaction signatures on both networks rest on elliptic curves (ECDSA), and when a wallet signs a transfer, its public key becomes visible to everyone. If AI learned to recover the private key from it, an attacker could spend other people's coins on ordinary hardware, no quantum computer required. By "break," Drake means recovering a key in about a week on a large GPU cluster.
Drake used to keep his focus on quantum computers. In March, after a Google paper suggested a quantum break could come sooner than expected, he put the odds of Q-Day by 2032 at 10% or more. Now, he says, AI may reach that point first, so preparation has to cover both scenarios at once.
The trigger was the 722 math manuscripts OpenAI published on Tuesday. An unreleased model produced them after being tested on roughly 4,000 research problems, and some results come with proofs a computer can check. An outside researcher has already rechecked one of them, a new bound on how fast computers can multiply large matrices, a problem mathematicians have worked on since 1969, and it held. Elliptic curves, Drake says, look especially vulnerable to superintelligence.
How the market reacted
On Thursday morning bitcoin dropped to about $82,300 and bounced to $82,800. That is 4% below Tuesday's high near $86,600, CoinDesk reports. Ether trades around $2,530, while Solana and XRP fell about 4% over the day, according to Decrypt.
Blaming it all on bunker mode would be a mistake, though. The 30-year US Treasury yield rose to 5.71% ahead of a $22 billion auction, and the Fed minutes showed most officials expect another rate hike by year-end. Oil is climbing on reports of a possible strike on Iran. US spot Bitcoin ETFs lost $485 million in a day, the biggest outflow since June.
For traders this means two separate channels of pressure. The first is macro: pricier money and oil hit every risk asset, and the CoinDesk 100 lost about 2% over the day. The second is informational, because each new AI math result adds an uncertainty premium to the price. If ETFs keep losing hundreds of millions a day, exchange volumes will rise because institutional money is leaving, not because of fear about signatures.
The industry is split. According to The Block, some participants wave the warning away, while others say not to wait for proof and to prepare now.
Who is exposed first
Not everyone has an exposed key, and that sets the queue. Millions of BTC sit on addresses where the public key is already visible onchain. Ethereum is harsher: every account that has ever sent a transaction has revealed its key, and the stablecoins and tokenized funds on the network are controlled by the same signature system.
Drake called about 20,000 exposed addresses holding 50 BTC each "Satoshi's shield." They would likely be attacked first, so wallets with less get partial cover through timing. Separately, he urged Binance, Bitbank, Robinhood, Bitfinex and Tether to harden their cold storage.
There is a side effect for analysts too. If large holders really start moving coins, onchain data will show a wave of transfers between old and new addresses. Activity like that is easy to misread as selling or panic, although exchanges and funds would simply be changing storage addresses. The market already watches ancient wallets. Today coins mined for pennies in 2010 and now worth about $8.5 million moved. The reason for the transfer is unknown and nobody has linked it to bunker mode, but such moves will now be examined under a magnifying glass.
Exchanges have it harder than private holders, because their vaults are large and clients will ask about protection first.
How much of this threat is proven
Nobody has demonstrated a practical attack on Bitcoin or Ethereum keys. The research CoinDesk reviewed contains none either. Still, AI is already finding holes in real code. Volunteers at the Bitcoin Red Team swept 390 bitcoin projects in 27 hours and logged almost 5,000 possible flaws, 85 of them critical. On July 30 someone began draining Coldcard wallets through a five-year-old firmware bug, at least 1,367 BTC. Maker Coinkite suspects AI helped find it. Earlier, in December 2025, Anthropic researchers showed that frontier models can write working exploits against copies of real DeFi contracts, and on August 27 the Core Lightning developers issued an emergency warning after AI-generated bug reports turned up real vulnerabilities.
Vitalik Buterin agreed the risk is real but asked people not to rush:
- lattice cryptography, which underpins some quantum-resistant standards, could take serious hits within two years of AI math
- he considers hash-based signatures sturdier, though they can be attacked too
- the Ethereum Foundation targets quantum resistance by December 2029, while Drake's worst case puts a classical break much earlier
- a botched migration can cost more than the break itself
"I personally have lost more money in botched migrations than I have lost in all hacks combined."
- Vitalik Buterin, Ethereum co-founder, from a post on X, October 2026
That asymmetry matters for judging the risk. Coins sitting on an address with a hidden key lose nothing, while a transfer through an unfamiliar interface or a dubious service can end in a loss. Drake stresses that migration needs no new cryptography or new wallets, only an ordinary transfer to a fresh address. The goal, in his words, is a calm, controlled move without panic.
What comes next for the market
Two indicators are worth watching. The first is whether old wallets start moving to addresses with hidden keys, the second is what the big custodians say about their plans. Until a break is confirmed, rates and oil set the price of Bitcoin. Drake promised to push for a faster Ethereum move to hash-based cryptography, so the wallet-migration debate is unlikely to end this week.
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