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We do not intentionally include any personal details by default when crash reports are sent to us. While it cannot be ruled out entirely that crash details don't include any personal information (f.e. if it ends up on the stack data which is part of the crashdump), chances of this happening are very slim (as the game usually stores personalized data (for the online functionality) only in encrypted ways and hence they also would be encrypted, if they happen to end up on the sent stack data).
That however also means that we won't be able to tell which user ran into a particular crash we have on record on the servers.
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