White hat hackers revealed stealing coins, teach users how to keep bitcoin
The recent return to Blockchain 267 bitcoin wallet hacker “Good Samaritan”, revealed the method he stole bitcoins, and gave bitcoin holders his own proposals on how to keep the bitcoin wallet.
The computer scientists and researchers, through the bitcoin call handle told CoinDesk, every day, he will scan bitcoin block chain recently added data, and to find the duplicate “R value” script.
He said: “every bitcoin transaction value by two” R “and” S “marking, if the same R value was used for two times, the private key is easily computed from the tag.”
“Good Samaritan” wrote yesterday: “in principle, continue to use Blockchain.info should be safe, but I’m still not optimistic.” He added, may be cached by the browser, users are advised to visit again before their Blockchain account, first clear the cache.
Even so, the best solution is still to make a larger number of bitcoin wallet stored in the cold.
“For a large number of bitcoin, I suggest not to save the private key to the computer, there are too many Trojans around the world, designed to steal bitcoin wallet.”
The article has pointed out that “Good Samaritan” to return the 255 coins, but has so far been hackers I confirmed that 267 bitcoins, 12 additional bitcoin is due to the browser’s cache.