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As part of the devs farewell message on their site, they have included malicious code to make each visitor sends 2,000 requests to the dbzer0 servers in an attempt to DDOS and take the instance offline.
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this post was submitted on 27 Jul 2026
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Tesseract is an android app people could use to connect to lemmy. For some reason, the dev had several instances, words and users completely blocked within the code, without letting the person who downloaded even know about it, much less disable the blocks. One of the things it blocked were "mod abuse" communities.
As expected, things exploded once it was made public. No problem in having personal biases, everyone has them, but shipping an app with those biases baked in and hidden from the user is a shitty thing to do.
It was also obfuscated in the source code by downloading the block list when the app was opened and then lied to the user about blocked instances, showing a message saying they weren't compatible with the app rather than admitting the app had blocked them.
Which also is what led to it being found, since db0, being a good dev, saw his whole instance was "incompatible" and dug into it to resolve it and figured out what was really going on.
Excellent summary, thanks!