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Massive Data Breach Exposes 410GB from Israeli App

5/20/2025

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Summary

Story summary

On May 4, 2025, a major data breach at Israeli firm TeleMessage exposed a staggering 410 GB of sensitive information, including unencrypted messages from its TM SGNL app. The leak, published by DDoSecrets, has sparked alarm among U.S. officials, notably former National Security Advisor Mike Waltz, over the app's security measures.

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Story summary

On May 4, 2025, a major data breach at Israeli firm TeleMessage exposed a staggering 410 GB of sensitive information, including unencrypted messages from its TM SGNL app. The leak, published by DDoSecrets, has sparked alarm among U.S. officials, notably former National Security Advisor Mike Waltz, over the app's security measures.