Schneier - Eavesdropping on SMS Messages inside Telco Networks

Fireeye reports on a Chinese-sponsored espionage effort to eavesdrop on text messages:

FireEye Mandiant recently discovered a new malware family used by APT41 (a Chinese APT group) that is designed to monitor and save SMS traffic from specific phone numbers, IMSI numbers and keywords for subsequent theft. Named MESSAGETAP, the tool was deployed by APT41 in a telecommunications network provider in support of Chinese espionage efforts. APT41's operations have included state-sponsored cyber espionage missions as well as financially-motivated intrusions. These operations have spanned from as early as 2012 to the present day. For an overview of APT41, see our August 2019 blog post or our full published report.

Yet another example that demonstrates why end-to-end message encryption is so important.



from Schneier on Security https://www.schneier.com/blog/archives/2019/11/eavesdropping_o_8.html

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