**Check that your iPhone is up to date**

A vulnerability has been found in older versions of iOS that attackers could exploit to access data on your iPhone, potentially putting your crypto at risk. Simply opening a malicious website could give them access to data on your iPhone.

**The issue is with iOS itself, not Walt. **Apple has already fixed it, so all you need to do is update:
● Go to Settings → General → Software Update
● Install iOS 26.3 or later. If your iPhone doesn’t support it, install the latest version available

Don’t open links from people you don’t know, and be careful with any requests involving money or access to your account.

Learn more about these and other security measures in our [FAQ](https://help.walt.io/article/11-the-security-measures).

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