About NetBackup cluster application management
Only use the cluster application's management tools to start and to stop NetBackup in the cluster. In a UNIX or Linux environment, do not use bp.start_all or bp.kill_all to start or stop NetBackup.
Ransomware attackers specifically target and attempt to destroy backup systems to increase the probability of payment. Hardening your system is critical. Please ensure you have reviewed your platform security using the Security Hardening Checklist