When you connect to storage account using account name and key, you get full access to that storage account thus you will be able to create new items, update existing items
and delete items from that account. There is no permission-based access to a storage account using account name/key.
Cloud Portam offers a unique solution to this problem wherein you can instruct it to open a storage account in either read-only or read-write mode.
When you explore a storage account in read-only mode, you will not be able to perform create, update or delete operations on that account.
When you explore a storage account in read-write mode, you will be able to perform create or update operations but not delete operations on that account.