I'm a passionate senior iOS & macOS developer with over 13 years in the Apple ecosystem and 25 years in the software industry. I have a special interest for data security and privacy compliance!
When storing or reading data from a disk, or when making API calls, does your app's sole validation of data involve ensuring that the JSON can be decoded? How do you receive email addresses in your JSON? Do you use a simple string variable? There is ...
Do you rely on TLS Pinning or OS level HTTPS handling for all your API privacy? You may either break your app or insufficiently protect your information on corporate networks. It is not unusual for large corporations to use HTTPS proxy for data ins...
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When Swift introduced actors in Swift 5.5, many developers breathed a sigh of relief. Finally, a language-level construct that would protect us from data races! But here's the uncomfortable truth: actors don't eliminate data races—they just change wh...
Commenting on this post on LinkedIn: https://www.linkedin.com/posts/jacobmartinbartlett_the-biggest-problem-with-swiftui-is-that-activity-7261769674034409472-qGVe?utm_source=share&utm_medium=member_desktop I replied with: *The "Massive View Controll...
The safest way is to keep your API keys server side. But if you have a library that's useable offline and it requires a license key to unlock, you will need a way to securely store that license key at runtime, without access to a server. Strap your h...
Someone asked me that question earlier. Well, as with everything else, it depends. First, if your module/library will need to be distributed with assets, you should go with a .xcframework as it can include additional files. Manually distributing a ...
When creating a Swift class or actor, if you don't intend to override any of the functions in that class you should use the final keyword. Here's an example of why this is important: Notice that the attacker did not even need to match the function n...
We have been drilled that we should strip debugging symbols before releasing our app on the App Store. Apple even does this automatically for us in the build settings when we create a new project. However when we are using Swift as our programming la...
