>a class of attack wherein non backed up data was at risk
Ransomware is just the act of preventing access to data, with the access being reinstated after paying a fee to the attacker. Generally accomplished by encryption. Whether or not the victim has mitigations, backups, etc. holds no relevance to the class of attack.
>This seems like a failed ransomware attack
It's not really a failed ransomware attack. The attack was successful (they were able to encrypt some data), followed by successful reinstatement of access to the data by using backups, followed by successful extortion by the attacker.
Ransomware is just the act of preventing access to data, with the access being reinstated after paying a fee to the attacker. Generally accomplished by encryption. Whether or not the victim has mitigations, backups, etc. holds no relevance to the class of attack.
>This seems like a failed ransomware attack
It's not really a failed ransomware attack. The attack was successful (they were able to encrypt some data), followed by successful reinstatement of access to the data by using backups, followed by successful extortion by the attacker.