One of the best articles I read this week was a Washington Post report that revealed how some Bitcoin wallets from the pre-2016 era have a major vulnerability that could let hackers guess their private key, which is the password that controls the wallet.
As the Post explains, the problem "stems from wallet programs that created cryptographic keys that weren’t random enough. Instead of crafting electronic keys that were one in a trillion and therefore very hard for an outsider to forge, they made keys that were one in some number of thousands—a randomness factor easily hacked."
