Callsign Blog

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: Tackling sim swap fraud whilst improving 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...

Whitepaper: Intelligent Swipe Authentication

The use of touchscreen based mobile devices is...

When you intend to launch our new brand video, and #Mondaymotivation takes hold...

We got very excited when we finalized our...

You dancing? Who’s asking?

Making the digital slow dance catch up with...

Infographic: Cyber Security Awareness Month

In support of Cyber Security Awareness Month,...

Callsign Partners with London Met University

The London Metropolitan University have...