Funding rates across major centralized and decentralized exchanges remain predominantly negative on Nov. 23 despite a two-day price rebound, Coinglass data show. Nearly all crypto asset trading pairs show negative funding rates, indicating continued bearish positioning among market participants. Funding rates represent the cost exchange mechanism between long and short traders in perpetual contracts, designed to keep contract prices aligned with spot prices, with rates below 0.005% typically signaling bearish market sentiment.

Port3 Network disclosed on Nov. 23 that its PORT3 token was exploited due to a boundary condition validation flaw in the CATERC20 cross-chain token standard from Nexa Network. The vulnerability allowed unauthorized access when token ownership was renounced, as the function return value matched the owner verification condition. An attacker registered address 0xb13A...812E as an authorized address via RegisterChains operation at 20:56:24 UTC, with subsequent attacks from addresses including 0x7C2F...551fF using the same method. The team has contacted major exchanges to suspend deposits and withdrawals and will issue a revised token to resolve the issue.

Coinbase will begin a wallet migration process 30 minutes after its Nov. 22 announcement, the company said. Large on-chain transfers between existing Coinbase-controlled wallets and new Coinbase wallets may occur as part of scheduled operations to maintain security standards. Users can continue trading, sending, and receiving crypto assets with no downtime or changes to deposit addresses, according to the official statement.

Base-based DEX Aerodrome said on Nov. 22 it is investigating a frontend compromise affecting its .finance and .box domains and advised users to avoid these endpoints. All smart contracts remain secure and unaffected, the platform said. Two decentralized mirrors are available for safe access, with updates to follow as the investigation continues.

Bitcoin fell below $83,000 on November 21, down 8.3% over 24 hours, HTX market data show. Ethereum dropped below $2,700 during the same period, declining 9.5%.

The Nasdaq Composite fell 0.2% on Nov. 21, slipping below 22,000 after opening higher, market data show. Crypto-related stocks declined broadly, with Strategy (MSTR) down 2.35%, Coinbase (COIN) falling 1.6%, MARA Holdings (MARA) dropping 2.88%, and Riot Platforms (RIOT) losing 3.91%. Bitmine Immersion (BMNR) decreased 4.5%, while SharpLink Gaming (SBET) fell 3.55%.

Nasdaq 100 index futures rose 0.65% on November 21, reversing an intraday drop of 0.9%, market data show. The turnaround marked a swing of approximately 1.55 percentage points from the session low.