The Polylog Crypto Intelligence Brief

Morning Edition · Wednesday, October 28, 2026

Crypto

Attackers Use Bought and Borrowed Votes to Take Over X100, Arkadiko and Yapeswap Governance

X100 lost about 4.85 million USDT, or roughly $6 million counting later transactions, after an attacker used a flash loan to win two of its three governance "Senate" seats in one Ethereum transaction. Arkadiko lost about $1.09 million two days earlier through the same weakness.

8 sources

Crypto

Electrum Patches Flaw That Let Malicious Servers Redirect Bitcoin Fee Bumps to Attackers

Version 4.8.3 now verifies signatures on unconfirmed transactions after developers confirmed at least one theft. A Solflare validator with about 1.56 million delegated SOL also stopped earning rewards after its staking provider's keys were compromised.

9 sources

Tech

OpenAI Says Its AI Refuted the Exponential Time Hypothesis, and Researchers Say Bitcoin's Signatures Are Not Affected

The claim concerns counting solutions to a hard logic problem faster than brute force and still awaits independent verification. Aztec's disclosure of a critical proof flaw found by AI-assisted auditing shows the same capability working on the defensive side.

5 sources
Plausible

Crypto

Ethereum Researchers Find No Adopted Post-Quantum Plan for Consensus-Layer Networking as Aztec Targets a 2030 Migration

A Nyx Foundation inventory finds that replacing validator signatures with the hash-based leanXMSS scheme would not update the peer-to-peer layer, while Aztec has set dates from February 2027 to November 2027 for choosing its post-quantum primitives.

4 sources

Crypto

Datavault AI Shares Fall About 50% After It Says It Cannot Withdraw Bitcoin From the Biconomy Exchange

The Nasdaq-listed company will cut reported assets at the end of 2025 by $92.2 million and now records the bitcoin as a receivable from Scilex Holding, the counterparty that paid it in coin.

4 sources
Corroborated

Crypto

Bithumb Discloses Hack of Employee System as Attackers Breach 16 South Korean Financial Institutions

South Korea's Financial Services Commission counts about 100,000 data breaches so far, Daishin Securities says about 38,490 customers were affected, and Coinbase separately says a breach at analytics vendor Amplitude exposed some customer contact details.

5 sources
Corroborated

Crypto

Miden Launches a Private Wallet and Pitches a "PriFi" Stack Built Around a Private, Compliant USDC

The Polygon spin-out says its partners will settle identity, custody, neobanking and real-world assets on Miden with amounts and counterparties hidden from the public ledger, while Aztec has put the game Dark Forest live on its own privacy network.

5 sources

Crypto

Zcash Co-Founder Sean Bowe Proposes Ending the 8% Block-Reward Stream to Community Grants

Bowe argues that the grants committee's roughly $125 million treasury can fund it without new issuance, while Tyler Winklevoss and developer Josh Swihart push for deeper cuts, and ZEC rose 8%.

4 sources
Plausible

Macro

Bessent Tells Ripple Conference That Regulators Will Build the Crypto Rules Congress Did Not Pass

The Treasury Secretary presented dollar stablecoins as a source of demand for Treasury debt, as Ripple won final approval from the Office of the Comptroller of the Currency (OCC) for a trust bank to hold RLUSD reserves and Brazilian companies bought Tether's dollar token after Lula's re-election.

6 sources
Corroborated

Crypto

CFTC Reopens Questions Over Polymarket's 2022 Settlement While Suing Utah to Protect Kalshi

Reuters reports that the regulator is examining whether Polymarket let Americans onto its offshore platform in breach of a $1.4 million settlement, as Polymarket launches five-minute crypto price markets in its US app.

5 sources
Plausible

Crypto

Intel, Oracle and IBM Raise Objections to OKX-ICE Tokenized Stock Venue to 26

Under the Securities and Exchange Commission's (SEC) new framework, each objection blocks a tokenized version of that company's shares from trading on the venue, even as Coinbase chief executive Brian Armstrong says "all asset classes are moving onchain."

4 sources
Corroborated

Markets

Bitcoin Trades Near $81,000 Before the Fed Decision as Crypto Industry Spends $176 Million on Midterm Races

TD Cowen says a Democratic sweep in next week's midterms would stall the CLARITY Act, and Robinhood's crypto revenue fell 55% from a year earlier even as the broker reported record quarterly sales.

6 sources