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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

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Illustration accompanying Starknet weighs quitting Ethereum to reach quantum resistance two years sooner
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STRK climbed from about $0.03 in April to $0.073 STRK token price in US dollars: roughly $0.03 in April, when StarkWare cut staff, versus near $0.073 on Friday, per Decrypt.

Before-and-after figure of the STRK token price. It was roughly $0.03 in April, when StarkWare cut staff to chase revenue. It traded near $0.073 on Friday, up about 20% in 24 hours.

STRK climbed from about $0.03 in April to $0.073
MeasureValueAs ofClaim
April, as StarkWare cut staff0.03 US dollarsApril18
Friday, up about 20% in 24 hours0.073 US dollarsFriday17

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.

Why it matters

  • What it limits constraint As long as Starknet stays an L2, its 2027 date depends on Ethereum finishing upgrades that Starknet cannot make for itself.
  • What it costs 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.
  • Who's exposed 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.
  • What it sets up 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 [9]. 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 [8]. A 2027 date for full quantum resistance therefore needs one of two things: Ethereum moves early, or Starknet stops being an L2 [4].

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 [5]. 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" [7].

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 [2], and the statement does not say how existing apps and users would move [3]. 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 [8][16]. 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 [17] implies roughly $0.061 before the post [19]. Against about $0.03 in April [18], 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 [5][2].

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 [14]. 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 [15].

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.

Information, not investment advice. This story is general information about companies and markets, drawn from cited reporting. It is not a recommendation to buy, sell or hold any security; check the cited sources before acting.

Clarity's read

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

Reality

Evidence55
Adoption
Not scored
Hype gap+55
Incentives45
Confidence68

Perspective Coverage

5 publishers
Builder
Builder 37%
Operator
Operator 17%
Investor
Investor 46%
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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."

    Reported Supported Source: Starknet post on X, via Decrypt; also reported by BanklessView cited source
  2. [2]

    There is no formal proposal or vote yet on Starknet becoming an L1.

    Reported Supported Source: BanklessView cited source
  3. [3]

    The statement does not say how existing apps and users would move over.

    Reported Supported Source: DecryptView cited source
  4. [4]

    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.

    Reported Supported Source: StarkWare CEO Eli Ben-Sasson, via DecryptView cited source
  5. [5]

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

    Reported Supported Source: Eli Ben-Sasson, via DecryptView cited source
  6. [6]

    Ethereum's roadmap targets core post-quantum infrastructure by around 2029, per ethereum.org, after the Ethereum Foundation formed a dedicated post-quantum team in January.

    Reported Supported Source: Decrypt, citing ethereum.orgView cited source
  7. [7]

    Ethereum researcher Justin Drake said in January, when the post-quantum team was formed, that "timelines are accelerating."

    Reported Supported Source: Justin Drake, via DecryptView cited source
  8. [8]

    Starknet's own proofs rely on hash functions, considered quantum-resistant, though some elliptic-curve pieces remain that it said it would replace in a roadmap published June 30.

    Reported Supported Source: DecryptView cited source
  9. [9]

    StarkWare's June post-quantum roadmap left Ethereum-dependent pieces like bridge messaging and blob data waiting on Ethereum's own upgrade.

    Reported Supported Source: BanklessView cited source
  10. [10]

    Becoming an L1 would mean Starknet secures itself instead of borrowing Ethereum's protection, and is responsible for its own safety and development.

    Reported Supported Source: Decrypt, summarising Ben-SassonView cited source
  11. [11]

    Ben-Sasson said the quantum threat "may be much closer than we think" and that AI's pace in mathematics adds a second risk that calls for "bunker mode", a phrase Ethereum researcher Justin Drake used earlier that week.

    Reported Supported Source: Eli Ben-Sasson, via Decrypt; Bankless also reports the borrowed phraseView cited source
  12. [12]

    Ben-Sasson said Starknet could reach quantum resistance by 2027, two years before the end-of-2029 date he cited for Ethereum.

    Reported Supported Source: Eli Ben-Sasson, via Decrypt; Bankless reports the same end-2029 figureView cited source
  13. [13]

    A layer 2 is a network that sits on top of Ethereum, bundles transactions into batches and leans on the base chain for security.

    Reported Supported Source: DecryptView cited source
  14. [14]

    No quantum computer can break these systems today, and experts disagree on when one might.

    Reported Supported Source: DecryptView cited source
  15. [15]

    Strategy co-founder Michael Saylor told Bloomberg last year that he does not worry about quantum risk, arguing that banks and tech giants would be hit first.

    Reported Supported Source: Michael Saylor to Bloomberg, via DecryptView cited source
  16. [16]

    Quantum computers could one day crack the elliptic-curve cryptography used by Bitcoin and Ethereum.

    Reported Supported Source: DecryptView cited source
  17. [17]

    The STRK token traded near $0.073 on Friday, up about 20% in 24 hours.

    Reported Contested Source: DecryptView cited source
  18. [18]

    STRK's price is more than double the roughly $0.03 it fetched in April, when StarkWare cut staff to chase revenue.

    Reported Contested Source: DecryptView cited source
  19. [19]

    STRK traded at roughly $0.061 before the 20% move.

    Derived Contested
  20. [20]

    At $0.073, STRK is about 2.4 times its April price of roughly $0.03.

    Derived Contested

Sources

5 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. cryptobriefing.com

    1 article · October 9, 2026

    STRK rallies as Starknet weighs a move from Ethereum layer 2 to its own layer 1
  3. cryptopolitan.com

    1 article · October 11, 2026

    STRK Rallies 80% in a Week After Starknet Floats L1 Move, Citing Quantum Threat
  4. cryptoslate.com

    1 article · October 11, 2026

    Starknet considers leaving Ethereum for a quantum-resistant Layer 1
  5. decrypt.co

    1 article · October 9, 2026

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

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