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Hackers exploit Gyazo server flaw to steal 23.6 million user records

  • Sinisa Markovic--Help Net Security
  • published date: 2026-09-21 08:57:26 UTC

Japanese software company Helpfeel has confirmed a data breach on its screenshot-sharing platform Gyazo, in which attackers exploited a vulnerability in its image upload server, stealing approximately 23.62 million user records and metadata tied to hundreds o…

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