Gyazo Data Breach Exposes 23 Million User Records
A Gyazo breach exposed 23 million user records after attackers exploited a vulnerability in Helpfeel’s image upload server. Japanese software company Helpfeel is notifying Gyazo users about a data breach that compromised 23 million user records. Attackers gained unauthorized access by exploiting a vulnerability in the service’s image upload server. “We have confirmed that approximately […]
Pierluigi Paganini
September 18, 2026

Japanese software company Helpfeel is notifying Gyazo users about a data breach that compromised 23 million user records. Attackers gained unauthorized access by exploiting a vulnerability in the service’s image upload server.
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