Callsign Blog

Callsign Chooses Nexmo, the Vonage API Platform, to Deliver More Secure Communications for Banking Customers

Partnership puts innovative digital identity...

Show & Tell: Behavioral Swipe Authentication

Callsign and CKH IOD, Team Up to Enhance Fraud Detection

Digital identity focused innovation goes...

Whitepaper: Behavioral PIN Authentication

Download our latest whitepaper looking at...

SS7: The vulnerability you’ve never heard of  

You may not have heard of SS7 but it is the...

Understanding the shortage of AI talent in a data revolution

In the last decade there has been an AI...

Two birds one stone: Using MNO data to tackle phone-based fraud and improve customer trust

Mobile banking adoption has rocketed in the...

Callsign Announced as a ‘Disruptor to Watch’ by The Sunday Times Fast Track 100

As part of The Sunday Times annual Fast Track...

Watch: Beyond SCA, the forgotten advantages of PSD2

Join us for our latest webinar as we examine...

Whitepaper: Location Based Authentication

When it comes to secure identification,...

Size does matter… Why large complex policies aren’t your greatest asset

Policies are one of the main lines of defence...