this post was submitted on 21 Jan 2025
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Privacy

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45
Cloudflare Issue Can Leak Chat App Users' Broad Location (www.404media.co)
submitted 5 months ago by otter@lemmy.ca to c/privacy@lemmy.dbzer0.com
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This affects Signal too

An issue with Cloudflare allows an attacker to find which Cloudflare data center a messaging app used to cache an image, meaning an attacker can obtain the approximate location of Signal, Discord, Twitter/X, and likely other chat app users. In some cases an attacker only needs to send an image across the app, with the target not clicking it, to obtain their location.

https://gist.github.com/hackermondev/45a3cdfa52246f1d1201c1e8cdef6117?ref=404media.co

Signal, an open-source encrypted messaging service, is widely used by journalists and activists for its privacy features. Internally, the app utilizes two CDNs for serving content: cdn.signal.org (powered by CloudFront) for profile avatars and cdn2.signal.org (powered by Cloudflare) for message attachments.

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[–] FediNeko@lemmy.dbzer0.com 3 points 4 months ago

Agreed, but there is the challenge of our time. In the end you can only do so much and you'll stand out just for not being a normal facebook user, been trying to get everyone to move to something else, anything that isn't a big player. I've watched the world go from BBS, all the way to twitter.. It has been depressing to say the least.