Joanna Stern Profile picture
👩🏻‍💻Senior personal tech columnist @wsj 📺 Contributor @nbcnews + @CNBC 🏆 Emmy winner, technology and family lover
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Jun 5, 2023 5 tweets 1 min read
OK here we go, iOS 17. Rounding up key features here:

- ✉️ Live transcription of voicemail
- 📱 FaceTime video messages so can leave videos when people don't pick up
- 💬 Voice notes in Messages will now be transcribed for those times when you can't listen ⌨️ It's about ducking time. Big autocorrect and typing predictions coming.
Feb 24, 2023 9 tweets 3 min read
Something crazy is happening around the country. Thieves are stealing iPhones—then people’s entire digital + financial lives.

How do they do it? They're watching for passcodes.

Our investigation into how a stolen iPhone can be so much more. (🧵1/7)

on.wsj.com/3SuLFvy This is a story about crimes happening across the country, but this is also about how Apple has put so much power in the passcode. That single string of digits allows a thief to:
🔴 Change an Apple ID password
🔴 Access iCloud keychain passwords
🔴Use Apple Pay (🧵2/7)
Dec 7, 2022 4 tweets 2 min read
I sat down with Apple's Craig Federighi on Monday to talk about the new iCloud end-to-end encryption or what Apple calls... Here's his answer on China:
Dec 7, 2022 4 tweets 2 min read
BIG NEWS: Apple is finally bringing end-to-end encryption to most of iCloud, including backups, Photos, Notes and more. Apple’s calling it Advanced Data Protection. Full story here, including my exclusive interview with Craig Federighi:
wsj.com/articles/apple… It’s coming in beta today and to all in U.S. by the end of the year. Global release is set for 2023. Federighi confirmed it’s coming to China. wsj.com/articles/apple…
Oct 9, 2022 5 tweets 3 min read
Since the iPhone 14 went on sale, the 911 dispatch center near Kings Island amusement park has received at least six phones calls saying:

“The owner of this iPhone was in a severe car crash...”

Except, the owner was just on a roller coaster.

🆕 by me: on.wsj.com/3CkEJJz Full column has the details, including stories from those who have had these false alarms, an explanation from @johnrstevenson (who has ridden over 280 different roller coasters in the country) and Apple's response.
Dec 17, 2021 5 tweets 3 min read
We created more TikTok automated accounts and told the app they were 13.

The algorithm served them tens of thousands of weight-loss videos within a few weeks.

The latest story in our @WSJ TikTok investigation: on.wsj.com/32f0MmI @WSJ This is our 3️⃣rd piece in this @WSJ TikTok series.

Here’s #1️⃣, a video investigation where we broke down the algorithm and how it drove our bot accounts into rabbit holes of depression. wsj.com/video/series/i…
Sep 8, 2021 6 tweets 3 min read
We made 31 TikTok accounts registered as teenagers to see what the app shows young users.

Some got an unending reel of videos about sex and drugs.

Our @WSJ investigation is now live:
on.wsj.com/3z0uwhW @WSJ Some highlights from this:

🔴 TikTok served one account registered as a 13-year-old at least 569 videos about drug use, references to cocaine and meth addiction, and promotional videos for online sales of drug products and paraphernalia.
Jul 21, 2021 9 tweets 8 min read
How does TikTok figure you out so well? How does it know that thing you never told anyone?

An insanely powerful algorithm.

We created dozens of automated TikTok accounts that watched thousands of videos to learn more.

Our @WSJ visual investigation: wsj.com/tiktokalgorithm Some highlights of what we did and some stuff that I haven’t seen reported before:
🔴 The incomparable @rob_barry + @JohnWest designed a system with dozens of automated TikTok accounts. We gave these 🤖s hidden interests. That is, they rewatched videos with certain #s + images.
Apr 26, 2021 4 tweets 2 min read
Step 1: Start downloading iOS 14.5.

Step 2: Watch my exclusive interview with Apple’s Craig Federighi + read my column on all the privacy changes.

Step 3: Tap “Ask App Not to Track” or “Allow” over and over again.

on.wsj.com/3nlKoqS Image This column is a result of weeks of testing apps with surprisingly compelling let-us-track-you prompts and talking to lots of people in ad industry

on.wsj.com/3nlKoqS Image
Feb 1, 2021 4 tweets 1 min read
iOS 14.5 developer beta is out and it confirms that Apple is as frustrated as all of us about unlocking the iPhone with a mask on. It includes a new feature: Unlock iPhone with Apple Watch while wearing a mask. If you are wearing a mask and have an unlocked Apple Watch on your wrist, you can unlock FaceID on your iPhone.
Aug 6, 2020 8 tweets 5 min read
Well, holy crap! Our @WSJ Amazon video series has been nominated for two Emmys! I’m beyond proud of these pieces for so many reasons. #NewsEmmys @WSJ One nomination for our video that brought you inside Bangladesh factories supplying Amazon third-party sellers wsj.com/video/series/b…