It does not have to be via the same method; what the attackers discover from the first compromised machine may give them access to other machines. It seems clea

It does not have to be via the same method; what the attackers discover from the first compromised machine may give them access to other machines. It seems clear this is what happened here: Employees are under constant advanced spear-phishing attacks on various social channels and one employee was compromised... The attacker managed to leverage that access to penetrate Sky Mavis IT infrastructure and gain access to the validator nodes.