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My first article about TikTok is online: "TikTok: Logs, Logs , Logs" medium.com/@fs0c131y/tikt…
In this article, I tried to answer to the question: "What logs does TikTok regularly send?" medium.com/@fs0c131y/tikt…
I decrypted the content of the requests and tested all the use cases to get all the possible logs sent by TikTok medium.com/@fs0c131y/tikt…
Does TikTok poses a risk to US national security? No idea but what I can say is TikTok doesn't have a suspicious behavior when it comes to the logs it uploads. medium.com/@fs0c131y/tikt…
It sends 3 type of info:
- Info about the device: device_id, device_type, device_brand, os_api, os_version, …
- Info about the app: app_type, app_language, version_code, version_name, build_number, …
- Info about the user: current_region, locale, region

medium.com/@fs0c131y/tikt…
Yes, this is already too much. But it's not specific to TikTok and all your favorite apps (Instagram, Facebook, SnapChat, ...) are doing the same thing medium.com/@fs0c131y/tikt…
Stay updated, TikTok is a big app, I will continue to write about it. If you have questions, feedbacks, ideas, my DMs are open! Love 😘 medium.com/@fs0c131y/tikt…
PS: Some people commented: "but the servers are in China 🤪". Well, it's not that simple. TikTok is using @Akamai, a CDN provider, for log16-normal-c-useast1a.tiktokv.com. So if you are in the US, it will resolves to an US IP, in France, a French IP, etc.
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More from @fs0c131y see all

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Elliot Alderson
@fs0c131y
<Thread> It’s 5:30am and I’m at the airport. Few days ago, M. X called me. He is the CEO of a big company and he thinks that one of his competitors hacked his phone. I’m going to the company HQ to analyse his phone and evaluate the situation.
This is my first post-lockdown flight. Even if the lockdown ended a while ago and the situation is under control in France, the majority of flights are still cancelled and the airport is empty. We are in the middle of the summer holidays, it should be full of people in theory.
This view is amazing.

Bonus game: #GEOINT experts, what city is in the first photo?
Read 23 tweets
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Elliot Alderson
@fs0c131y
This morning an earthquake with a magnitude of 7.8 struck off the coast of Alaska. A tsunami warning (now cancelled) has been issued.

I asked myself simple questions:
- Who was the first to tweet?
- What is happening on the ground when a tsunami warning is issued?

Thread ⬇️⬇️⬇️
At 8:21 AM, the National Weather Service @NWS_NTWC for the continental U.S. and Canada issued the Tsunami warning
At the same time they published this event picture
Read 15 tweets
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Elliot Alderson
@fs0c131y
1/ On one hand, social networks are the main source of information for most of us. In general, people don’t read. Images, short videos are the best way to get people’s attention.
On the other hand, disinformation is one of the biggest threat on our democracies

What should we do?
2/ The younger generation is more on SnapChat, Instagram and TikTok. Photos or videos are the main content on these platforms.

Can you see the point? How do we protect ourselves against these « new » ways to consume the information?
3/ We have to bring a technical solution to tackle this issue. Forget the « AI blockchain changing the world solutions ». I want a real time solution. Something which is able to tell me: Is this guy in the video tell the truth? What is the context of this image?
Read 5 tweets

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