Preventing data leakage
To eliminate or at least reduce the chances of suffering data leakage on your API or the application behind it, a multi-layered approach is possibly one of the best options. This involves secure coding practices, robust AuthN, and careful handling of sensitive information.
The first line of defense is secure API design – only create the interfaces you need. In other words, only expose the data your API requires to function. Avoid open queries that could allow unauthorized access. In GraphQL, tools such as query whitelisting act as bouncers, restricting data requests and preventing the over-fetching of sensitive information.
Source code best practices are a vital topic too. When interacting with databases, one important point to keep in mind is to use parameterized queries instead of simply forwarding what the user provides as input to them. Think of these as pre-prepared invitations to the database – they prevent attackers from manipulating...
