Callsign Blog

The digital world operates on the basis of knowing that someone is who they say they are. Which is exactly what Callsign helps organizations achieve. And, at the same time, stopping the bad guys in their tracks.
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SS7: The vulnerability you’ve never heard of  

You may not have heard of SS7 but it is the...
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Whitepaper: Location Based Authentication

When it comes to secure identification,...
Callsign

Whitepaper: Intelligent Swipe Authentication

The use of touchscreen based mobile devices is...
Callsign

Bot Wars - The Evolution of Malicious AI Powered BOTs

Bots are becoming one of the greatest...
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