The Polylog Crypto Intelligence Brief

Morning Edition · Sunday, October 18, 2026

Crypto

Karpelès says Ledger documented spy implants in March as thefts from CryptoBilis-sold wallets pass $86 million

Ledger has confirmed that tampered devices sent seed phrases out over a cellular link, so the standard advice to buy from an authorized reseller did not protect these buyers.

7 sources
Plausible

Tech

Claude traces the NSA-supplied seeds behind NIST's P-256 curve to a timestamp-seeded generator run in 1997

Anthropic's team claimed cryptographer Filippo Valsorda's three-year-old bounty and donated it, which removes one long-cited reason to distrust the curves but does not address bitcoin's separate quantum exposure.

5 sources
Corroborated

Crypto

Aztec says an AI audit found a proof-forgery flaw in its Alpha V5 network and it cannot tell whether anyone used it

The fix waits for the V6 release, and V5 is the second consecutive Aztec alpha to carry a critical vulnerability, while the network's privacy design means past chain data cannot show whether forged proofs were accepted.

5 sources

Crypto

Google cuts magic-state errors about 40-fold on its Willow chip, removing one bottleneck on the path to attacks on exposed bitcoin keys

Researchers note that breaking RSA-2048 still needs magic states roughly a million times cleaner, while Aztec has set the end of 2030 as its target for a full post-quantum migration.

5 sources
Corroborated

Crypto

Ethereum schedules Glamsterdam on the Hoodi testnet with a 200 million gas target, more than three times the mainnet limit

Node operators must upgrade before the test, which CryptoSlate dates to October 26, while core developers have still not set a mainnet activation date.

4 sources

Crypto

Bitget's $388 million loss came through hacked security appliances, not stolen keys, and other September exploits also ran through trusted infrastructure

Hot-wallet key leaks at Duelbits and a signing-key compromise on the SingularityNET bridge followed the same pattern, while NEAR Intents lost $3.8 million to a deposit-accounting bug.

8 sources
Plausible

Crypto

Miden announces a private-finance stack built around a USDC-backed private stablecoin as Shield Swap brings Flowdesk liquidity to confidential trading

Both projects aim at institutions that will not trade on public ledgers, and Miden pairs default privacy with transaction-level compliance tools, which raises the question of who holds the right to see the data.

4 sources

Crypto

Circle defends USDC revenue sharing while Coinbase also backs Open USD, a rival that passes reserve income to distributors

A Bank for International Settlements paper finds that small rises in bank deposit rates slow stablecoin growth, which makes the split of reserve income the central question in the sector's economics.

5 sources

Crypto

TRON carried $2.2 trillion in stablecoin transfers but TRX supply rose on each of 108 straight days

Fee burns fell short of new staking rewards every day from July 1 through October 16, so the network's stablecoin traffic did not make its native token deflationary.

2 sources

Crypto

Goldman Sachs, Wells Fargo and Morgan Stanley call tokenization a growth line as Polygon buys Coinme to own the payments customer

Citrini's research argues that real-world assets give blockchains a clear role in finance, but the open question is whether banks, networks or applications will capture the fees.

3 sources

Crypto

Binance will shut its bitcoin mining pool on November 10, giving its miners about three weeks to move their hashrate

Mining stops at 07:00 UTC that day and historical records close two weeks later, while Block's Proto hashboards reach a new hosted-mining channel through Sazmining.

2 sources

Macro

Bitcoin trades near $82,000 before the October 28 Federal Reserve decision as hot inflation keeps rate hikes in play

Capital Economics expects gold to fall for the rest of the year as the Fed keeps hiking, and all ten of the largest layer-2 networks tracked by L2Beat lost value secured over the past week.

5 sources