alt Hacker NewsThis is for backups. The threat here is that random ware uses your backup script to delete/encrypt the backups too. With object lock the api key the script has can only add data.
The probability that the object store goes out of business at the exact time your own copy dies is insignificant.
No object lock API would help you if the business where you rent the service is going out of... business. With all your data - and you are without.
Or even fancier - just changing the price for the egress.