What if your iOS app is already leaking user data and you don’t even know it?
A recent March 2025 Cybernews report found something shocking. Over 156,000 iOS apps have secrets like passwords and API keys hidden in their code. Hackers can easily find and use these to steal personal data or break into people's accounts.
Most people think iOS apps are always safe. But clearly, that’s not the case! Researcher Aras Nazarovas said many apps have open databases and exposed user information.
So here’s the question. Is your custom iOS app development company building your app the right way? Or are they also leaving dangerous gaps behind?
In this blog, we’ll share the top security practices that a smart and trusted custom iOS app development company follows. So your app stays protected from the first day.
They Follow Secure Coding Practices
Think of app code like building blocks. If some blocks are weak or broken, the whole structure can fall. In the same way, bad code makes your app easy to hack. Good devs know this and build apps with strong, clean, and up-to-date code.
It’s like using new and solid bricks to build a house instead of old and cracked ones.
So they:
- Use trusted tools and safe code libraries
- Follow top safety rules (like OWASP Mobile Top 10)
- Check their code by hand and with tools like Xcode analyzers
- Avoid copy-paste coding from random sources like GitHub or Stack Overflow
This keeps your app from breaking or leaking private data.
Data Encryption Is Always a Priority
Imagine sending a letter with no envelope. That's so vulnerable, as literally anyone could read it! That’s what unprotected data is like. A custom iOS app development company always "lock up" your data before sending or saving it.
Even if someone grabs the data, they can’t read it without the key.
They do this by:
- Using secure roads (TLS/SSL) for sending data
- Locking stored info with strong codes (AES-256)
- Keeping passwords safe in iOS Keychain
- Hiding sensitive data from screenshots and background tasks
So your data stays safe even if someone steals your phone.
Strong User Authentication Is a Must
A password is like a single key. If someone finds it, they get in. But what if you needed a key and your face to unlock your house? That’s how secure apps protect users, with more than just a password.
A reliable custom iOS app development company adds extra locks to make sure only the right person gets in.
They use:
- Face ID or Touch ID for easy logins
- Codes sent to your phone (MFA) for extra safety
- Auto logouts if you’re away too long
- Safe login systems like OAuth for Google or Facebook
Then again, even if someone steals your iPhone, they still can’t get in.
Their Backend Systems Are Just as Secure
The backend is like the engine of a car. You can’t see it, but it powers everything. If the engine has problems, the whole car can stop. The same goes for custom iOS apps. If the backend is weak, your iOS app is in danger (even if the front looks fine).
A smart custom iOS app development company protects the backend, too.
They:
- Use special tokens (like JWT) to control who can connect
- Guard databases with locks (firewalls and encryption)
- Use safe cloud platforms like AWS
- Let only certain people see certain data (role-based access)
This keeps your app safe even when it’s not running on the phone.
Regular Security Testing Is Built into the Process
You don’t wait for your car to crash before checking the brakes, right? The same goes for apps. Therefore, good devs of a trustworthy custom iOS app development company test for problems before the app goes live (and even after).
They pretend to be hackers to find weak spots first.
They test by:
- Running fake attacks (penetration tests)
- Using real phones and not just simulators
- Scanning for issues with tools like ZAP or TestFlight
- Fixing problems as soon as Apple sends updates
This way, they don’t hope your app is safe. They know it is.
They Stay Updated with Apple’s Latest Policies
Apple changes the rules often. It's just like a teacher who says there will be MCQs and gives long questions. This might seem funny to hear, but Apple takes it quite seriously. If your iOS app doesn’t follow the new rules, it might stop working or get removed from the App Store.
A good custom iOS app development company keeps up with every change.
They stay current by:
- Building with the newest iOS tools (SDKs)
- Following Apple’s safety rules like ATS
- Getting your app ready for changes in tracking and privacy
- Testing the app before each iOS version to avoid crashes
This means your app won’t get blocked or crash after an iOS update.
Maintenance and Security Don’t Stop After Delivery
Building the app is just the start. Like a car, it needs care to run well. iOS apps need updates, bug fixes, and protection from new threats.
Smart companies stick around to keep their app healthy.
They help by:
- Sending updates to fix bugs and add features
- Watching for new iOS issues
- Offering 24/7 support if things go wrong
- Keeping all tools and add-ons up to date
Without care, your app can break or get hacked. With care, it keeps working great.
Is Your Custom iOS App Really in Safe Hands?
Security isn’t something you can afford to overlook. As you’ve seen, even small mistakes like weak code or missed updates can open big doors for hackers. And with thousands of iOS apps already leaking data, this isn’t just a “what if” problem. It’s real, and it’s happening right now.
That’s why working with a secure custom iOS app development company matters more than ever. From strong coding to ongoing updates, the right team will protect your app and your users at every step of your app process.
Your app’s security and your reputation depend on it!
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