VLDB RTO issue

The database for our critical Banking application is 13 TB, and our RTO (Recovery Time objective) is 2 hours. We are running on 12C and have 3 nodes RAC clusters in both Prod & DR and have Active Data Guard set up too.

But our company's Audit & Risk compliance team has flagged us with VLDB break asking us how would you restore your large DB from the backup in 2 hours if there will be any Cyber Attack and corruption gets propagated to DR. I know this kind of restore/recovery may not be required ever, but we still have to prove that we have a strategy in place to meet our RTO of 2 hours in case we have to restore from backup. I would like to mention that we have to keep at least 8-10 years of data in our DB for compliance purposes.

I know there might be lots of DBAs on this forum who could be supporting VLDBs, can you please share how have you implemented VLDB recovery solutions for your DBs?

Thanks,
Harinder Singh