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CISA is urging government and political officials to use end-to-end encrypted messaging apps like Signal after observing a series of telecom breaches affecting multiple countries, including eight carriers in the US. This is to ensure secure communication and prevent potential data leaks of government and political conversations. These breaches highlight the need for stronger security measures in the telecom industry.

This cluster involves incidents related to the takedown of various criminal communication platforms. The MATRIX encrypted messaging service, used by criminals for illegal activities, was dismantled in an international operation involving French and Dutch authorities, supported by Eurojust and Europol. The criminals were monitored for months before the operation was conducted. This demonstrates the continued efforts to disrupt and counteract criminal activity online through international cooperation.