Bulletin
Investor Alert

The Wall Street Journal Archives | Email alerts

Aug. 11, 2020, 4:47 p.m. EDT

TikTok collected Android user data using tactic banned by Google

Practice ended in November, testing shows

new
Watchlist Relevance
LEARN MORE

Want to see how this story relates to your watchlist?

Just add items to create a watchlist now:

  • X
    Facebook Inc. Cl A (FB)
  • X
    Alphabet Inc. Cl A (GOOGL)
  • X
    Alphabet Inc. Cl C (GOOG)

or Cancel Already have a watchlist? Log In

By Robert McMillan


Getty Images
The identifiers collected by TikTok, called MAC addresses, are most commonly used for advertising purposes.

TikTok skirted a privacy safeguard in Google’s Android operating system to collect unique identifiers from millions of mobile devices, data that allows the app to track users online without allowing them to opt out, a Wall Street Journal analysis has found.

The tactic, which experts in mobile-phone security said was concealed through an unusual added layer of encryption, appears to have violated Google policies limiting how apps track people and wasn’t disclosed to TikTok users. TikTok ended the practice in November, the Journal’s testing showed.

The findings come at a time when TikTok’s Beijing-based parent company, ByteDance Ltd., is under pressure from the White House over concerns that data collected by the app could be used to help the Chinese government track U.S. government employees or contractors. TikTok has said it doesn’t share data with the Chinese government and wouldn’t do so if asked.

The identifiers collected by TikTok, called MAC addresses, are most commonly used for advertising purposes. The White House has said it is worried that users’ data could be obtained by the Chinese government and used to build detailed dossiers on individuals for blackmail or espionage.

TikTok, which said earlier this year that its app collects less personal data than U.S. companies such as Facebook Inc. /zigman2/quotes/205064656/composite FB -0.90%   and Alphabet Inc.’s /zigman2/quotes/202490156/composite GOOGL -2.42%   /zigman2/quotes/205453964/composite GOOG -2.38%   Google, didn’t respond to detailed questions. In a statement, a spokesperson said the company is “committed to protecting the privacy and safety of the TikTok community. Like our peers, we constantly update our app to keep up with evolving security challenges.” The company said “the current version of TikTok does not collect MAC addresses.”

An expanded version of this report appears on WSJ.com.

Also popular on WSJ.com:

Why are some groceries still so hard to find during pandemic?

Russia registers world’s first COVID-19 vaccine despite safety concerns.

/zigman2/quotes/205064656/composite
US : U.S.: Nasdaq
$ 252.53
-2.29 -0.90%
Volume: 28.13M
Sept. 18, 2020 4:00p
P/E Ratio
30.85
Dividend Yield
N/A
Market Cap
$719.41 billion
Rev. per Employee
$1.57M
loading...
/zigman2/quotes/202490156/composite
US : U.S.: Nasdaq
$ 1,451.09
-35.95 -2.42%
Volume: 3.15M
Sept. 18, 2020 4:00p
P/E Ratio
32.36
Dividend Yield
N/A
Market Cap
$989.95 billion
Rev. per Employee
$1.39M
loading...
/zigman2/quotes/205453964/composite
US : U.S.: Nasdaq
$ 1,459.99
-35.54 -2.38%
Volume: 3.10M
Sept. 18, 2020 4:00p
P/E Ratio
32.56
Dividend Yield
N/A
Market Cap
$989.95 billion
Rev. per Employee
$1.39M
loading...

This Story has 0 Comments
Be the first to comment
More News In
Industries

Story Conversation

Commenting FAQs »
Link to MarketWatch's Slice.