Kaspersky Warns of Complex Stealka Malware Targeting Cryptocurrency Portfolios

On December 23, Greeks.live noted in a social media post that this week falls during the Christmas holiday—with U.S. stock markets closed on Christmas Eve and Christmas Day. During this period, institutional and retail investors in Europe and the U.S. typically step back from trading, a trend that usually holds until after New Year’s Day. This Friday (the 26th) marks the annual settlement day, with over 50% of current total options open interest set to expire. Most institutions have opted to roll over positions in advance. Since last week, implied volatility (IV) across all major expiry dates has fallen sharply, alongside a rise in block trades. Combined with declining volatility, the Christmas trading lull, and year-end position rolling, Bitcoin’s IV for all key expiry dates has dropped by more than 5% over the past month—with short-to-medium-term IV down over 10%. Ethereum has seen an even steeper IV decline. Collectively, these data signal subdued market expectations: co

December 23rd — PeckShieldAlert monitoring detected that wallets 0x1209...e9C and 0xaac6...508 were hacked due to private key exposure, resulting in losses of approximately 2.3 million USDT. The attacker swapped the stolen funds for 757.6 ETH and laundered the assets through the TornadoCash mixer.

On December 23, per BitcoinTreasuries.NET, Canadian publicly traded firm Matador Technologies (ticker: MATA) has unveiled plans to raise $58 million to acquire additional Bitcoin (BTC), targeting 1,000 BTC in holdings by the end of 2026.

NEW YORK, Dec. 23, 2025 — BlackRock, the world’s largest asset manager, officially labeled Bitcoin the top investment theme of 2025 at a high-profile investment summit in New York on Dec. 22, 2025, per FinanceFeeds. This move reinforces the institutional narrative shaping the current market cycle. The head of BlackRock’s iShares division proposed a strategy at the summit, positioning Bitcoin alongside U.S. Treasury bonds and the “Tech Big Seven” stocks as the three pillars of a modern diversified investment portfolio. This recognition marks a major evolution in BlackRock’s stance: from early explorations to fully integrating digital assets into its core macroeconomic framework. The firm’s focus is no longer just offering access to speculative assets, but acknowledging Bitcoin as a core component of the global monetary system’s infrastructure. BlackRock’s 2025 thesis hinges on the “macro mirror” argument, where Bitcoin’s performance increasingly mirrors global concerns over sov

As of December 23, Coinglass data shows the top crypto spot assets by net fund flows over the past 24 hours: ### Top Net Inflows - USDC: $168M - FDUSD: $7.72M - LTC: $6.09M - PAXG: $3.33M - XAUT: $3.06M ### Top Net Outflows - BTC: $3.33B - ETH: $81.56M - XRP: $60.06M - ZEC: $16.67M - USDE: $14.13M （Note: "M" = million, "B" = billion – standard shorthand for U.S. financial/ crypto updates）

On December 23rd, CryptoQuant analyst Axel shared data on social media indicating that both current market sentiment and on-chain structure are pointing to weakness in the crypto market—short-term holders are already facing losses, and all key recent support levels have now become resistance.