Last week's Facebook ($NASDAQ:FB) data breach affected a reported 50 million users who had their login tokens hacked. Login tokens allow users to access third-party apps using their Facebook credentials, so anyone who hijacked these credentials — as they did in this breach — could access users' accounts on other services.

But what are those third-party apps? We track the most-used apps that use Facebook login tokens, and for the month of September, Pinterest ($PINTEREST) topped that list, followed by Spotify ($NYSE:SPOT). Other notable apps in the top-20 include Tinder, YouTube, Airbnb, and Uber.

The following table shows the top-20 apps accessed via Facebook login token last month (subscribers can get the full list here).

Name

Monthly Active Users Rank

Pinterest

2

Spotify

3

Candy Crush Saga

4

Tinder

5

TripAdvisor

8

Wish

11

YouTube

14

Airbnb

15

Candy Crush Soda Saga

21

Texas HoldEm Poker

25

Yelp

27

Farm Heroes Saga

33

PlayStation™ Network

43

GoFundMe

62

Etsy

65

letgo

69

Pet Rescue Saga

73

Uber

78

Zomato

81

Bumble

81