A customer contacts you for assistance with performance troubleshooting of their backup environment because over the last few days they notice Increasing times tor backup completion. They see no apparent reason for this, since the data volume to be backed up did not change unusually compared to the previous days and weeks.
You also notice that the deduplication ratio, historically steady at about 20:1. is now gradually declining Is this a potential cause or the problem?
Solution:Ransomware is encrypting data, making the dally incremental backups grow and lowering the deduplication ratio due to new content.