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BTC $62,722.69 -1.40%
ETH $1,871.19 -0.75%
BNB $607.39 -0.63%
XRP $1.00 -0.80%
SOL $75.62 -0.45%
TRX $0.3333 -0.57%
DOGE $0.0695 -1.10%
ADA $0.1819 -1.79%
BCH $205.24 -4.51%
LINK $8.77 +0.83%
HYPE $56.48 -1.03%
AAVE $86.91 -2.30%
SUI $0.6784 -1.39%
XLM $0.1587 -1.19%
ZEC $488.65 -1.44%

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153 stolen addresses contain 132.95 BTC, and researchers are still unable to reproduce the Coldcard attacker's seed

According to monitoring by Bitcoin News, new research published by @PraveenPerera shows that Coldcard attackers seem to first identify addresses with vulnerabilities, then sort them by the amount of Bitcoin held, starting to transfer in batches from the addresses with the highest holdings. The transfer software used was relatively crude.One address had 225 spendable UTXOs, and the attackers extracted exactly the latest 200, leaving the earliest 25, which included a UTXO worth 0.16 BTC. This aligns perfectly with the limitation of a blockchain API investigated by researchers, which defaults to returning 200 records, indicating that the attackers may have failed to load the next page of data. The software even spent a UTXO of 294 satoshis, reportedly increasing the transaction fee by about 2040 satoshis, with the spent amount significantly higher than the value of the UTXO itself.The authors of the study believe that the builders of this tool may have a better understanding of the account balance system than of the Bitcoin UTXO model. Although the attackers seem to have obtained the complete seed of the victims, at least 75 BTC still remain in other addresses derived from the same seed. The biggest suspicion currently is that among the 153 stolen addresses, there are still 132.95 BTC, and researchers have been unable to reproduce the seed behind these addresses, so it cannot be ruled out that the attackers obtained undisclosed private device data or candidate data.

hot_img Samsung Electro-Mechanics' customer evaluation for glass substrates encounters obstacles, delaying equipment investment schedule

According to The Elec, Samsung Electro-Mechanics' investment schedule for semiconductor glass substrates has been delayed due to bottlenecks in the reliability assessment of customer prototypes. As a result, the construction schedule for the production line of GlaSSEM, the glass core joint venture between Samsung Electro-Mechanics and Dongyu Fine Chem, has also been postponed, and the timeline for ordering related equipment has become uncertain.The report states that GlaSSEM has failed to communicate the equipment order schedule to its partner manufacturers. Previous orders have been postponed from December last year to March and June this year, and this has happened more than three times. After June, no further schedule guidance has been provided. Industry insiders believe that the main reason is that global communication semiconductor customers have not passed the reliability assessment certification for glass substrate prototypes. Samsung Electro-Mechanics is still producing prototypes at its Sejong plant, and most of the suppliers for key processes required for building the mass production line, such as deposition, etching, laser drilling, and inspection, have already been selected.Since the prototypes need to be remade and resubmitted, the originally planned investment schedule will inevitably be further delayed. Samsung Electro-Mechanics had set a target for mass production in the second half of 2027 when establishing GlaSSEM earlier last month, but during last month's financial report meeting, this timeline was adjusted to 2028, and now the mass production time is expected to be further postponed.
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