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Slow Fog Analysis suggests hardware implantation to steal mnemonic phrases from Ledger

The Chief Information Security Officer of Slow Mist Security, 23pds, stated that if the modification of the Ledger device's PCB is indeed as described by former Mt. Gox CEO Mark Karpelès, the attacker would possess a considerable level of technical skill.23pds mentioned that the possible attack process involves the wallet generating a mnemonic phrase within a secure element and displaying it on the screen for the user to write down. A malicious module could obtain the displayed content through screen data lines such as SPI, record the complete mnemonic phrase, and then send the data to the attacker via LTE/eSIM. The secure element can prevent the private key from being directly read or exported, but it cannot stop external modules from accessing the information currently displayed on the screen. He noted that the above analysis is based on the premise that the PCB has indeed been modified in the described manner, and the relevant attack paths and hardware implantation still require independent verification.Mark Karpelès previously stated that a Ledger hardware wallet he received was suspected of being implanted with a spy module. The device came from Malaysia, the outer packaging was intact with shrink wrap, and the implant was hidden in the position where the screen originally had a cushion, containing LTE communication components, an antenna, eSIM, and a microcontroller connected to the Ledger SPI bus, capable of analyzing the characters displayed to the user and sending relevant data after the mnemonic phrase setup is completed.

Benson Sun: This round of Bitcoin may show a slow bull trend, gradually reaching new highs

Cryptocurrency KOL and former FTX community partner Benson Sun stated that he expects the current Bitcoin market to show a gradual new high slow bull trend, rather than forming a clear top after a rapid short-term rise like in 2013 and 2017. Before the true cycle top arrives, the market may experience multiple local top signals. He believes that after 2021, the main buyers of BTC have gradually shifted from retail investors to institutions such as publicly listed companies, spot ETFs, and corporate treasuries.Since institutions mainly buy spot, some funds will also use Delta Neutral strategies for arbitrage, and traditional indicators such as funding rates and MVRV Z-Score may not rise to extreme levels again at the cycle top. Recently, the cycle top is more likely to manifest as institutional funds losing momentum rather than retail sentiment becoming overly heated. The Institutional Liquidity Index (ILI) mainly references overall dollar liquidity, the mNAV of Strategy, and the net flow of Bitcoin ETFs to determine whether institutional funds follow up when BTC reaches new highs. When BTC sets a new rolling 30-day high while ILI does not rise simultaneously, it constitutes a yellow divergence; when BTC breaks historical highs while ILI diverges and is below 50, it constitutes a red divergence.Benson Sun indicated that he would use the frequency of yellow divergences as a reference for judging the cycle process: each occurrence would lead to a proper reduction in altcoin positions and leverage; as the market enters the later stages, he would gradually increase the proportion of BTC and ultimately retain only spot. If a red divergence occurs, he would stop participating further.
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