What is the 'long-range attack' threat specific to Proof-of-Stake blockchains?
-
A
An attacker uses old private keys from past validators to rewrite blockchain history from a distant point
-
B
An attacker sustains a 51% attack for an extended period
-
C
An attacker mines blocks over long distances using satellite relays
-
D
An attacker gradually increases network latency to isolate validators