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this post was submitted on 27 Jun 2024
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I'm sure Temu collects all information you put into the app and your behaviour in it, but this guy is making some very bold claims about things that just aren't possible unless Temu is packing some serious 0-days.
For example he says the app is collecting your fingerprint data. How would that even happen? Apps don't have access to fingerprint data, because the operating system just reports to the app "a valid fingerprint was scanned" or "an unknown fingerprint was scanned", and the actual fingerprint never goes anywhere. Is Temu doing an undetected root/jailbreak, then installing custom drivers for the fingerprint sensor to change how it works?
And this is just one claim. It's just full of bullshit. To do everything listed there it would have to do multiple major exploits that are on state-actor level and wouldn't be wasted on such trivial purpose. Because now that's it's "revealed", Google and Apple would patch them immediately.
But there is nothing to patch, because most of the claims here are just bullshit, with no technical proof whatsoever.
The study and evidence was already provided months ago
https://grizzlyreports.com/we-believe-pdd-is-a-dying-fraudulent-company-and-its-shopping-app-temu-is-cleverly-hidden-spyware-that-poses-an-urgent-security-threat-to-u-s-national-interests/
This was also linked in the article if you read it
That.. is not a study by anyone who knows what they are talking about. It also does not mention fingerprints at all.
They seem to believe that the app can use permissions undeclared in the manifest file because they obviously think it's only for the store to show the permissions to the user. Android will not actually allow an app to use undeclared permissions. The most rational explanation is the codebase is shared with different version of the app (possibly not released) that had different manifests.
It also makes a big deal of checking if running as root. That is not evidence of having an escalation exploit. If they have an ability to get root before running the app why would they need to use the app to exploit it? They could just do whatever they wanted and avoid leaving traces in the app. Though I doubt they would root phones to just brick them. It's the kind of mischief you would expect from a kid writing viruses, not an intelligence agency or criminal enterprise.
Users who root their own phones are very unlikely to run temu as root. In fact a lot of apps related to shopping or banking try to detect root to refuse to work as your system is unsafely. In any case it's a very niche group to target.
To keep things short, that 'study' does not really look credible or written by actual experts.