It's worth noting that original Bitcoin clients did not use hierarchical derivation, so an attack of this kind would not necessarily have drained entire wallets; even if an attacker found some similar weakness [e.g. in all clients using a certain combination of operating system and OpenSSL version], each individual key would need to be found separately in the attacker's search.
It's worth noting that original Bitcoin clients did not use hierarchical derivation, so an attack of this kind would not necessarily have drained entire wallets; even if an attacker found some similar weakness [e.g. in all clients using a certain combination of operating system and OpenSSL version], each individual key would need to be found separately in the attacker's search.