"Vienna researchers retrieved all numbers. The 3.5 billion profiles represent the largest data leak in history"

"...downloaded all 77 million profile pictures visible to everyone—a proud 3.8 terabytes in total. In a random sample of half a million images drawn from this, a facial recognition routine found a human face in two-thirds of cases."

heise.de/en/news/3-5-Billion-A

Paper: github.com/sbaresearch/whatsap

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