Now, you have one more reason to adopt them throughout your apps. Private Relay works no matter what networking API you're using.įor several years, we've recommended that your apps use modern APIs such as URLSession and NWConnection. However, there are some best practices you should know about. The great news is that for almost every app, you don't need to do anything new! Private Relay will just work. Next, let's cover what you need to do to make sure your app is ready to work well with Private Relay. Traffic that uses a proxy is also exempt. Similarly, if your app provides a network extension to add VPN or app-proxying capabilities, your extension won't use Private Relay and neither will app traffic that uses your extension. Not all networking done by your app occurs over the public internet, so there are several categories of traffic that are not affected by Private Relay.Īny connections your app makes over the local network or to private domain names will be unaffected. You can learn more about this in the "Meet the Screen Time API" session. If your app provides a content filter or a parental controls filter, it will still see traffic before it goes through Private Relay, so you can apply your filters just as before. Specifically, this will include all insecure HTTP traffic, such as TCP port 80. In iOS 15 and macOS 12, Private Relay will apply to all web browsing in Safari, all DNS name resolution queries, and a small subset of traffic from apps. Private Relay is focused on securing the most sensitive traffic on the system without impacting user experience. You can learn more about this technology in the “Apple's privacy pillars in focus” session. Private Relay uses the latest transport protocols and privacy-preserving authentication to ensure that every transaction is both secure and fast. The opportunities for fingerprinting have been removed. It is critical to note that no one in this chain - not even Apple - can see both the client IP address and what the user is accessing. The second proxy only sees the name the user is requesting and uses that to build the connection to the server. Now, when someone accesses the internet, only the client IP address is visible to both the network provider and to the first proxy. One is Apple, and one is a content provider. The proxies are run by separate entities. ICloud Private Relay adds multiple secure proxies to help route user traffic and keep it private. These are big problems for user privacy, and in order to fix them, we need a new approach that has privacy built in by design. This allows the servers to determine user location without explicit permission.Įven worse, the servers are able to fingerprint user identity and recognize users across different websites, even when tools like Intelligent Tracking Prevention in Safari are preventing correlation via cookies. When connections reach the servers that run websites, those servers can see the user's IP address. No one should be able to silently collect all of this information, whether it's a public Wi-Fi operator, another user on the network, or an internet service provider. This information can be used to fingerprint a user and build a history of their activity over time. When someone accesses the internet, anyone on their local network can see the names of all of the websites they access based on inspecting DNS queries. You're probably wondering, What does it actually do? Here's how things currently work without Private Relay. It will only apply when a user is an iCloud+ subscriber and has Private Relay enabled. It's also important to understand that it won't always be affecting your app. Private Relay is built into iOS and macOS, so you don't need to do anything to adopt it from your app. Today, you'll learn what iCloud Private Relay is and how it affects your app how to ensure that your app works great with Private Relay how to prepare your websites and servers and, lastly, how to manage a network and monitor your traffic when Private Relay is enabled. Private Relay not only protects users when they're browsing the web, but also adds protection to the traffic generated by your app to make sure you're not unintentionally leaking user information or exposing users to security attacks. ICloud Private Relay is a new service that prevents networks and servers from monitoring user activity across the internet.Īnd it's available as part of every iCloud+ subscription. ♪ Bass music playing ♪ ♪ Tommy Pauly: Hi, I'm Tommy Pauly, and along with my colleague, Delziel, I'll be giving you an introduction to an exciting new feature in internet privacy.
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