Apple updated its privacy policy Wednesday and offered up more details on how it handles the data it collects to power the iPhone X's Face ID feature. "At Apple, we believe privacy is a fundamental human right," the company says in a new version of its privacy Web site. "And so much of your personal information — information you have a right to keep private — lives on your Apple devices."

Why it matters: With Apple now using facial recognition in addition to collecting fingerprints, it wants to reassure customers of the steps it takes to protect the data. Also, as all varieties of smartphones contain a treasure trove of personal information, Apple aims to make its strong privacy stance a selling point.

Here are the key new elements:

Face ID: As we've written, Apple is taking pains to make sure that the face recognition data stays on the device and can't be accessed by governments or others. To train the neural networks that power Face ID, Apple obtained (with informed consent) more than a billion images of people, including depth and infrared scans. There's more detail in a new page on Apple's Web site.

Differential privacy: Apple is expanding the areas where it collects user data but pledges to anonymize it. Data collected is obfuscated so that Apple cannot confidently guess what contributions an individual user has made. One new area where Apple is collecting such data is around Web sites, where it is trying to identify Web sites that often crash or drain the battery. Another thing Apple is exploring is which categories of health data that customers are using (but not the actual health data). For example, Apple is collecting whether people are storing heart rate data, but not their actual heart rate.

Disabling tracking cookies: One of the moves Apple is making is to offer the ability to block the cookies that track you across multiple Web sites. It's not an ad blocker -- you will still see ads, just not those targeting ones that serve up the same ads for the shoes you looked at once.

The bottom line: Apple needs more data to compete in key areas of machine learning and collecting that while preserving privacy requires a lot of creativity and striking a fine balance.

Go deeper

Updated 41 mins ago - Politics & Policy

Coronavirus dashboard

Illustration: Sarah Grillo/Axios

  1. Global: Total confirmed cases as of 2 p.m. ET: 12,573,041 — Total deaths: 561,865 — Total recoveries — 6,915,740Map.
  2. U.S.: Total confirmed cases as of 2 p.m. ET: 3,213,902 — Total deaths: 134,420 — Total recoveries: 983,185 — Total tested: 38,919,421Map.
  3. Public health: Jimmy and Rosalynn Carter: "Please wear a mask to save lives" Fauci hasn't briefed Trump on the coronavirus pandemic in at least two months — We're losing the war on the coronavirus.
  4. Food: How the coronavirus pandemic boosted alternative meat.
  5. Sports: Charge of "money grab" by college football.
  6. World: India reimposes lockdowns as coronavirus cases soar.
  7. 🎧 Podcast: Rural America has its own coronavirus problem.

Scoop: Don Jr. plans convention-week Biden book

Cover via Don Jr.

Donald Trump Jr., in quarantine since girlfriend Kimberly Guilfoyle tested positive for the coronavirus, says he's used the time to finish a book that he'll self-publish the week of the Republican convention, at the end of August.

What he's saying: Don Jr., whose controversial blasts connect with President Trump's base, told me in a phone interview that "Liberal Privilege" will be his effort to paint a picture of Joe Biden and his record that the press ignores.

Romney calls Stone commutation "historic corruption"

Sen. Mitt Romney. Photo: Tom Williams/CQ-Roll Call, Inc via Getty Images

Sen. Mitt Romney (R-Utah) on Saturday tweeted a scathing response to President Trump's Friday night commutation of former associate Roger Stone's prison sentence, calling the move "[u]nprecedented, historic corruption."

Why it matters: Romney has emerged as the party's most prominent Trump critic. He sent shockwaves through Washington after announcing he would vote to convict Trump in the impeachment trial — becoming the only Senate Republican to break ranks and vote for the president's removal from office. Now he is the first major GOP lawmaker to condemn Trump's Friday night call regarding Stone.