As expected, Apple took steps to bolster its privacy credentials at WWDC 2021, announcing a slew of new privacy changes that will affect popular iPhone apps and services. If you're like me -- one of the billion-plus people in this world who use an iPhone -- then I'd say it's worth getting a head start on the slew of new privacy updates coming to your iPhone (and iPads) hopefully sometime in the fall, with Apple's latest mobile software iOS 15. The public beta is has already however, so if you're comfortable with potential bugs, you can go ahead and download iOS 15 right now.

In a nutshell, the privacy changes, unveiled in June, will give you better control of the data you're sharing with third parties and will tell you how those apps are using data from your Apple devices. In some cases, the changes also limit data collection. Even though these privacy changes might not drastically change your day-to-day experience -- except maybe in the case of Siri -- they're worth knowing about. They can alter how your Apple device interacts with the internet, specifically third parties that crave your personal information. 

Siri gets more secure thanks to in-device audio processing

With iOS 15, one of the biggest privacy concerns for voice assistants will be stamped out, according to Apple.

Unlike Amazon Echo and virtually all other competitors, Siri will no longer ship your audio to servers for processing. Instead it'll process the sound of your voice directly on your Apple device, thanks to on-device speech recognition. Apple said iPhones and iPads will take advantage of processing power on Apple devices to analyze speech, meaning Siri will no longer need an active internet connection to function. For you that means, Siri will respond to basic commands such as setting an alarm, setting a reminder or launching an app while offline. This update doesn't include asking Siri to search the web for something.

Beyond amped-up privacy, Apple says you can expect Siri's response time to speed up for some requests, since the audio processing can now happen offline.

As I said earlier, some privacy features have a catch. For this one, Only iPhone and iPads stacked with the A12 Bionic chip can take advantage of Siri's in-device audio processing when it rolls out.

App Privacy report will give you important info on third-party access to data and sensors

If you were a fan of Apple's App Tracking Transparency feature, then you'll probably love the App Privacy report too. Taking a page from Safari's playbook, the report will be a new section accessible in Settings, giving you an overview of how apps treat your privacy. You can see when individual apps request to access features like the camera, microphone, and also see where or with whom your data might be shared within the last seven days, bringing an added layer of transparency to iOS 15.

Safari & Mail Privacy Protection: Hides your IP address

Apple's Mail Privacy protection feature coming to the Mail app will limit the amount of data senders collect from you when you open their promotional emails or even newsletters. In particular, the feature will give you the option to hide your IP address, so it can't be linked to other online activity or used to determine their location. This feature can potentially block spammy email marketers from learning more about your email or internet activity. 

iCloud Plus private relay feature encrypts web traffic

Apple also announced the paid subscribers to iCloud Plus will get a couple of new privacy features. 

One of them is Safari's private relay feature, which is designed to hide an individual's web browsing behavior from advertisers and internet service providers. It'll do this by encrypting the traffic leaving an Apple device, so that it cannot be intercepted by third-parties including Apple, who can then go on to read what's being searched for.

The second feature is called hide my email. If you're a subscriber, it will let you enter a randomly generated email when you're signing up for things -- such as a new account with an online retailer -- and the feature will have whatever it's sent forwarded directly to your actual email address. The idea is that fewer companies will have access to people's direct email addresses.