Which backup target will achieve protection from ransomware attacks by decreasing the opportunity for backups...

The Catalyst Store backup repository is designed to provide strong protection against ransomware attacks by reducing the opportunity for backups to become encrypted by malicious software. HPE StoreOnce Catalyst provides secure, deduplicated, and encrypted storage for backups, which can be further protected by air-gapping techniques and other security measures to prevent ransomware from accessing and encrypting the backup data.

For more information, refer to:

HPE StoreOnce and Catalyst Overview