HomeWinBuzzer NewsClubhouse Denies Data Breach but API Does Mean User Information is Public

Clubhouse Denies Data Breach but API Does Mean User Information is Public

Clubhouse has denied a breach caused data for 1.3 million users to appear online, but it seems the app’s API leaves customer information exposed.


Clubhouse has been one of the success stories of the COVID-19 campaign. While just a standard chat app on the surface, Clubhouse differentiates itself as an invitation-only solution. That helps users have more control over security during remote work and sessions. Clubhouse's success as meant several rival apps are integrating similar abilities.

However, there are concerns there could be a bug in the platform allowing user information to appear online. Still, Clubhouse denies this is the case.

Massive amounts of data collected from users has been posted on hacking forums. Specifically, a SQL file with personal information related to 1.3 million Clubhouse users. It's available for free and included user IDs, real names, photos, and handles.

CyberNews reports threat actors could leverage the data to engage in phishing campaigns. Clubhouse denies there is a bug and says the platform is simply built like that. In a Twitter post, the company said:

“This is misleading and false. Clubhouse has not been breached or hacked. The data referred to is all public profile information from our app, which anyone can access via the app or our API.”

What's the Difference?

Social media responders were quick to point out Clubhouse did not offer an explanation on what is false. In other words, the data is available online so what difference does it make how it got there? Clubhouse allows its API to sit open online, meaning anyone can access the information. That means the company's no data scraping policy is pointless.

“Clubhouse has conflicting user policies – being an invite-only platform and at the same time free-for-all ,” Setu Kulkarni, vice president with WhiteHat Security points out. “All it takes is one user to figure out the API for such large data egress of the millions of users on the platform.”

CyberNews researcher Mantas Sasnauskas says there is a privacy bug that is built into the app:

“The way the Clubhouse app is built lets anyone with a token, or via an API, to query the entire body of public Clubhouse user profile information, and it seems that token does not expire,” Sasnauskas said.

They are suggesting the open API itself is a bug that allows threat actors to use Clubhouse user data for nefarious means.

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Luke Jones
Luke Jones
Luke has been writing about all things tech for more than five years. He is following Microsoft closely to bring you the latest news about Windows, Office, Azure, Skype, HoloLens and all the rest of their products.

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