End-to-end encryption means data is encrypted at the sender and only the final recipient can decrypt it. True end-to-end encryption has excellent privacy and security benefits. However, it also has a cost. As a developer, it is a great pattern to utilize to shield data from 3rd parties.
Data integrity is rarely talked about, even though it comprises the basis of many data flows a modern web application has to deal with. From a security perspective, integrity deals with protecting data
Probably the most valuable thing you need to protect is data. You may own this data, or you may just be the custodian. It might be sensitive such as PII and credentials or