Skip to main content

Private data of some Facebook and Twitter users leaked through malicious apps

On Monday, November 25, Facebook and Twitter said private data of “hundreds of their users” was compromised through malicious third-party Android apps. The social media companies were tipped off by a team of security researchers who discovered that a software developer kit called One Audience allowed developers to access personal information they weren’t supposed to.

In addition to data such as email addresses and usernames, the vulnerability also exposed users’ recent tweets if they logged into those bad apps with their Twitter account. While the report doesn’t share specifics on the Android apps, CNBC says popular photo-editing apps like Giant Square and Photofy may be among them — the former of which has already been taken down from the Google Play Store.

The issue, as one would expect, didn’t originate due to oversights in Twitter and Facebook’s frameworks. Instead, the companies suggest it was caused by the lack of sufficient isolation between software developer kits within a single app on Android.

The majority of apps today employ multiple external tools for enabling different services like advertising and analytics. Since, according to Twitter, there wasn’t a stringent set of security walls to separate each of those, the OneAudience SDK was able to tap into the rest.

“While we have no evidence to suggest that this was used to take control of a Twitter account, it is possible that a person could do so,” added Twitter in a blog post.

“Security researchers recently notified us about two bad actors, One Audience and Mobiburn, who were paying developers to use malicious software developer kits (SDKs) in a number of apps available in popular app stores. After investigating, we removed the apps from our platform for violating our platform policies and issued cease and desist letters against One Audience and Mobiburn,” said a Facebook spokesperson.

Even though Twitter has pinned the breach on Android’s shortcomings, it’s still unclear how the OneAudience SDK stole users’ private data. Authentication APIs by Facebook and Twitter are not supposed to directly share information with third-party partners in the first place. Facebook mentions the breach impacted users who granted a few app permissions before reading what they were giving up.

Twitter and Facebook have notified Google and Apple of the vulnerability but haven’t commented on whether they plan to reprogram their apps to prevent a breach like this from happening again in the future.

Earlier this month, a Facebook bug gave its app background access to iOS users’ cameras and a week before that, it was found that private data of thousands of Facebook group members had been compromised.

Editors' Recommendations

Shubham Agarwal
Shubham Agarwal is a freelance technology journalist from Ahmedabad, India. His work has previously appeared in Firstpost…
WhatsApp will halt processing of Hong Kong police requests for user data
protestor holding yellow umbrella in front of police in hong kong

WhatsApp announced on Monday that it had “paused” its processing of law enforcement requests for user data from Hong Kong, Reuters reported.

In a statement to Reuters, a spokesperson said the pause would be in place “pending further assessment of the impact of the National Security Law, including formal human rights due diligence and consultations with human rights experts.”

Read more
Facebook shares location data with coronavirus researchers
Laboratory technician with record working at computer

Facebook has released new tools to provide location data to researchers working who are to understand and overcome the coronavirus, officially known as COVID-19.

Facebook's maps on population movements are already in use by researchers and nonprofit organizations responding to the outbreak. To further support their efforts, the social media company is releasing three new tools, collectively named Disease Prevention Maps.

Read more
WhatsApp follows Facebook and YouTube to over 2 billion monthly users
whatsapp group admin feature telegram

WhatsApp has joined the 2 billion users club. The Facebook-owned messaging company today announced that the 11-year-old app now hosts over 2 billion monthly users -- up from 1.5 billion in 2017 and about 500 million short of Facebook’s 2.5 billion user base. After Facebook and YouTube, WhatsApp is the third app worldwide to have crossed 2 billion users.

"There are so many significant and special moments that take place over WhatsApp and we are humbled and honored to reach this milestone. We know that the more we connect, the more we have to protect. As we conduct more of our lives online, protecting our conversations is more important than ever," WhatsApp wrote in a blog post.

Read more