Skip to content

InvestIndependently confirmed2 publishers2 min readPublished

Starknet weighs quitting Ethereum to reach quantum resistance two years sooner

Starknet says it is actively considering leaving Ethereum to become its own L1, with 2027 as its target for full quantum resistance. STRK rose about 20% to $0.073, Decrypt reported, so holders are already paying for an exit that is still only under discussion.

The Investor · Invest desk

How we use AISend a correction

Illustration accompanying Starknet weighs quitting Ethereum to reach quantum resistance two years sooner
Generated illustration

What happened

  • StarkWare CEO Eli Ben-Sasson wrote that, as an L2, Starknet relies on Ethereum's security and can only be as quantum-safe as its base layer.
  • Ethereum's roadmap targets core post-quantum infrastructure around 2029, per ethereum.org, after the Ethereum Foundation formed a post-quantum team in January.
  • Ben-Sasson said the quantum threat "may be much closer than we think" and that AI's pace in mathematics calls for "bunker mode", a phrase Justin Drake used earlier that week.

Compiled by The InvestorSomething wrong?How this is made

Why it matters

  • constraint As long as Starknet stays an L2, its 2027 date depends on Ethereum finishing upgrades that Starknet cannot make for itself.
  • cost Going L1 would move the bill for security and development onto Starknet itself, at a company that cut staff in April to chase revenue.
  • exposure STRK holders have bid the token to about 2.4 times its April level on an exit still at the discussion stage, so any retreat from the L1 idea lands on them first.
  • precedent The ceiling Ben-Sasson describes applies to every network that leans on Ethereum for security, so other L2s can now cite the same case for setting their own post-quantum schedules.

The pieces Starknet cannot replace on its own are the ones that touch Ethereum. StarkWare's June post-quantum roadmap left bridge messaging and blob data waiting on Ethereum's own upgrade, Bankless noted [7]. Those pieces wait because a layer 2 bundles transactions and leans on the base chain for security [13]. Starknet sets the schedule for everything else in its stack [6]. A 2027 date for full quantum resistance therefore needs one of two things: Ethereum moves early, or Starknet stops being an L2 [2].

Ben-Sasson framed it as a condition. He said the network needs Ethereum to move "real fast," and that becoming an L1 is among the options if it does not [3]. He put the gap at two years, a 2027 target against the end-of-2029 date he cited for Ethereum [12]. That 2029 date may move too: Ethereum researcher Justin Drake said in January that "timelines are accelerating" [5].

Ethereum could pull its schedule forward and Starknet would stay, which is the outcome Ben-Sasson's wording asks for first. Starknet could leave. It would then secure itself instead of borrowing Ethereum's protection, and take on its own safety and development [10]. Or the idea could stay a thread on X. Bankless reported there is no formal proposal or vote yet [8], and the statement does not say how existing apps and users would move [9]. I think the first outcome is the intended one. A public exit with a date attached puts pressure on a roadmap, and it costs nothing until someone has to write the migration plan. The counter-thesis is that Starknet means it. Its proofs already rest on hash functions, while Ethereum still uses the elliptic-curve cryptography a quantum computer could one day break [6][18]. A governance proposal that sets out how Starknet would secure itself and move its apps would prove this view wrong.

STRK holders are paying for the second outcome anyway. A price of $0.073 after a 20% day [14] implies roughly $0.061 before the post [19]. Against about $0.03 in April [15], the token is at about 2.4 times its spring level [20]. Starknet has said in public that it may stop waiting for Ethereum, and it said so before deciding anything [3][8].

A two-year head start is worth most if a working quantum attack arrives between 2027 and 2029 [12]. No quantum computer can break these systems today, and there is no consensus on when that will change [16]. Speaking to Bloomberg last year, Strategy co-founder Michael Saylor said the risk does not trouble him, since banks and big tech companies would be exposed first [17].

What to watch

  • A formal Starknet governance proposal or vote on becoming an L1 that says how apps, users and security would move.
  • Any change to Ethereum's post-quantum schedule, especially for the bridge messaging and blob data Starknet's June roadmap left waiting.
  • Whether another Ethereum L2 adopts Ben-Sasson's argument that a rollup is only as quantum-safe as its base layer.

Clarity's read

What the record supports and how the coverage leans. The claims behind it follow.

Reality

Evidence55
Adoption
Insufficient
Hype gap+45
Incentives55
Confidence60
Why these scores

Claim ledger

Ranked by verification strength, evidence, and original report placement.

  1. [1]

    "We are actively considering becoming an L1," the project wrote on X. "This would enable Starknet to become the first fully quantum-resistant network, with 2027 as our target."

    ReportedSupportedSource: Starknet post on X, via Decrypt; also reported by Bankless2 sources— create a free account to open themView cited source
  2. [2]

    Ben-Sasson wrote that Starknet, as an L2, relies on the security of Ethereum, which means it can only be as quantum-safe as its base layer.

    ReportedSupportedSource: StarkWare CEO Eli Ben-Sasson, via Decrypt2 sources— create a free account to open themView cited source
  3. [3]

    Ben-Sasson said the network needs Ethereum to move "real fast," and that becoming an L1 is among the options if it does not.

    ReportedSupportedSource: Eli Ben-Sasson, via Decrypt2 sources— create a free account to open themView cited source

Sources

2 independent publishers whose own reporting we read for this story.

  1. bankless.com

    1 article · October 8, 2026

    Starknet Weighs Becoming an L1 to Chase Quantum Resistance
  2. decrypt.co

    1 article · October 9, 2026

    Ethereum L2 Starknet Jumps 20% After Saying It Wants to Become an L1

Share your take

Let Clarity write the post for you.

Signed-in readers get a short post drafted on this story in the register they choose — narrative, analytical, or a direct position — editable to the last word before it goes anywhere. The share buttons at the top of this story work without an account.

Topics and entities

Follow any of these and your For You feed starts watching them — no settings page required.

Topics

Loading related stories