PSA: we have seen the vague viral reports alleging a Signal 0-day vulnerability.
After responsible investigation *we have no evidence that suggests this vulnerability is real* nor has any additional info been shared via our official reporting channels.
@Oozenet if that's what happened, then it's taking a slightly older vuln and misunderstanding it as a new vuln, then creating a rumor around it. In which case the rumor is erroneous, yeah, and Signal is correct that there's no "link preview vuln" as claimed.
Hope that helps in understanding.
Signal
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