Repeating R Values Leaves Bitcoiners Vulnerable

[bitkilo]

BitcoinTalk user johoe has found more Bitcoin signatures with repeated R values or “nonces,” a vulnerability allowing him to steal coins from wallets associated with the bad signatures. However, johoe’s goal is to exploit security flaws to make Bitcoiners aware, and wants to give money back to the people who can prove ownership of the bad addresses.

http://bitcoinist.net/r-values-more-stolen-bitcoins/

[bitkilo]

Here is a link to the last time johoe discovered this problem.

We need more people like him, he is a fantastic assett to the whole of the bitcoin community.

https://bitcointalk.org/index.php?topic=581411.0

[Vaultoro]

Thanks for this.
johoe really is a champion bitcoin white hat.