Coldcard Wallet Vulnerability: Around 1,367 BTC Stolen
Some Coldcard firmware releases seeded keys from a predictable software pseudo-random number generator, which means private keys could be brute-forced offline.
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Some Coldcard firmware releases seeded keys from a predictable software pseudo-random number generator, which means private keys could be brute-forced offline.

Bought a decade-old Antminer U3 for 25 yuan, then benchmarked CPU, RTX 2080 Ti and Bitaxe Gamma 601 mining BTCC SHA-256, and compared PPLNS, SOLO and AIRDROP pool modes.

Lambda expressions are the most important new feature driving the Java 8 release. They let you pass a function as a parameter to a method (a function passed into a method). So you must upgrade to JDK 8 or above to use Lambda expressions; if you're on JDK 7, you're out of luck.

Just as Bitcoin returned above 30,000, Satoshi Nakamoto seemingly "reappeared"! On August 30, the Bitcoin wallet believed to belong to Satoshi Nakamoto showed unusual activity: 3,000 Bitcoins mined between January 25 and 31, 2010 suddenly moved to two addresses, and it had been 7 years since the account was last operated. The account currently holds 440,000 Bitcoins, which at current market prices are worth as much as 13.2 billion yuan.





