I see the generative AI fad with its "hallucinations" & other mishaps as a giant, annoying, slow-rolling bubble (that we might never see completely burst in our lifetimes since companies continue to invest so much in the #tech).

Whereas - quantum computing is potentially a serious long-term #cybersecurity threat that could break the internet and is therefore a much bigger deal.

#QuantumComputing #cryptography #business #finance #MyThoughts
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https://www.forbes.com/sites/digital-assets/2026/03/31/google-finds-quantum-computers-could-break-bitcoin-sooner-than-expected/
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https://ig.ft.com/quantum-computing/

Well, it’s good that someone is drawing a line in the Crypto sand.

Google accelerates its readiness timeline to prepare for “Q-day” with post-quantum cryptography (PQC) migration to 2029. Reminder: Q-day = the date when quantum computing becomes operational and is powerful enough to break the digital signatures that secure the Internet, crypto (blockchain + Ethereum), and just about every other Information system in use today.

The Bitcoin crypto network relies on ECDSA elliptic curve signatures. https://techaptitude.substack.com/p/ecdsa-cryptographys-role-in-securing With an exposed crypto signature public key, a quantum computer could derive the private key. And then, the crypto assets would be freely available to a hacker.

Android 17 will integrate ML-DSA, an algorithm standardized by the NIST to secure digital signatures. https://security.googleblog.com/2026/03/post-quantum-cryptography-in-android.html

https://blog.google/innovation-and-ai/technology/safety-security/cryptography-migration-timeline/ #Crypto #PQC #PostQuantumCryptography #Cryptography #Google #Quantum #QuantumComputing #Q-Day #BlockChain #ECDSA #NIST #ML-DSA #Security #CryptoSecurity #Internet #TechAptitude

If your security depends on someone reacting in time,
you don’t have a guarantee. You have coordination.

Wrote about a real failure mode that keeps showing up.
https://app.daily.dev/posts/yqybiiFvJ

#blockchain #smartcontracts #security #formalmethods #web3 #cryptography #defi #ethereum #protocoldesign

RE: https://mastodon.social/@fj/116323066703142504

Providing a ZKP while keeping the algorithm secret seems misguided for the following reasons:

1. It is ineffective against dangers. For anyone with the capability to be among the first to build/access a physical implementation, recreating the work is only a minor hurdle knowing a solution exists. The proof provides incentive and certainty to justify redoing the work.

2. It unmotivates academic researchers. A ZKP turns original research into a homework assignment for others.

#cryptography #quantumcomputing

Two coordinated quantum cryptanalysis papers yesterday — same day, interlinked, complementary threat models:

Google (Babbush, Gidney, Zalcman + Ethereum Foundation + Stanford): ECDLP-256/secp256k1 compiled to surface code on planar superconducting arch. <500K physical qubits, ~9 min primed. Circuits withheld, verified via Groth16 SNARK over SP1 zkVM.

Oratomic (Cain, Xu, Bluvstein, Preskill, Endres, Huang): Same Google circuits compiled to high-rate lifted-product qLDPC codes (~30% rate) on reconfigurable neutral atoms. ~10K–26K physical qubits, ~10–264 days at 1ms cycle. Surgery gadgets are existence proofs, decoder-limited, LLM-assisted code search.

Together these bracket Google's own Scenario 1 (fast-clock on-spend) and Scenario 2 (slow-clock at-rest). The Oratomic arch solves Pinnacle's routing problem with atomic reconfigurability rather than non-planar wiring. Hardware gap: 6,100 demonstrated atoms → 10K needed (~2x) vs 1K demonstrated superconducting → 500K needed (~500x).

Neither paper moves Q-Day to next year. Both papers kill the "millions of qubits" comfort model.

Detailed analysis of both:
https://postquantum.com/security-pqc/google-quantum-bitcoin-ecdlp/
https://postquantum.com/security-pqc/10000-qubits-shors/
#infosec #pqc #quantumcomputing #bitcoin #cryptography

New breakthrough results for quantum attack resource estimates against 256-bit elliptic curves: most ECC-based applications including ECDSA and Bitcoin could be at risk way sooner than expected:

https://research.google/blog/safeguarding-cryptocurrency-by-disclosing-quantum-vulnerabilities-responsibly/

We estimate that these circuits can be executed on a superconducting qubit CRQC with fewer than 500,000 physical qubits in a few minutes [...] This is an approximately 20-fold reduction in the number of physical qubits required to solve ECDLP-256"

Interestingly, Google and friends did not release the blueprint for the attack circuit. In the name of "responsible disclosure", they only provided a zero-knowledge proof (ZKP) proving that the circuit works. This is, I think , a first in the realm of cryptanalysis disclosure.

The statement that our ZK proof demonstrates is the following: we possess a classical reversible circuit of a specified size which on most inputs correctly computes point addition on the elliptic curve secp256k. This is the primary bottleneck in Shor’s quantum algorithm

I have been saying this since the 2010s: quantum cryptanalysis is one of those non-linear technology progresses that will take everyone by surprise when it arrives. Qubits quality and numbers go up, error-correction and attacks improve, investments scale up accordingly. It's a perfect storm of compound factors. Folks didn't listen, now time is ticking.

More context at: https://gagliardoni.net/#20260331_new_quantum_estimates

#quantum #quantumcomputing #cryptography #security #cybersecurity #infosec #google #bitcoin #blockchain #ethereum #zkp #zeroknowledge

Google bumps up Q Day deadline to 2029, far sooner than previously thought

Google is dramatically shortening its readiness deadline for the arrival of Q Day, the point at which existing quantum computers can break public-key cryptography algorithms that secure decades’ worth of secrets belonging to militaries, banks, governments, and nearly every individual on earth

#quantum #quantumcomputing #QDay #encryption #cryptography #PQC #security #cybersecurity

https://arstechnica.com/security/2026/03/google-bumps-up-q-day-estimate-to-2029-far-sooner-than-previously-thought/