Callsign
Intelligence-Driven Fraud Prevention Across the Customer Journey
Callsign is a digital identity and intelligence-driven fraud prevention platform, acquired by TransUnion in 2022. Callsign's technology fuses behavioral biometrics, device intelligence, contextual data, and AI-powered decision-making into a unified real-time signal — enabling financial institutions to identify fraudsters while maintaining a seamless experience for genuine customers. The platform evaluates signals across the full customer journey: login, payment initiation, account changes, and call centre interactions. Callsign's Orchestration Layer combines hundreds of signals into a single, explainable confidence score — reducing friction for legitimate users and increasing friction for fraudsters. Its strength in Authorised Push Payment (APP) fraud prevention makes it particularly relevant for UK and European banks navigating mandatory reimbursement rules.
At a glance
Built for
Tier 1 Banks · Fintechs · Retail Banks · Payment Companies · Enterprise
Based in
London, United Kingdom (TransUnion acquisition, 2022)
Founded
2012
Official source
callsign.comProfile snapshot
The essentials at a glance
A concise overview of where Callsign fits in the financial crime technology landscape.
Category
Fraud Platform
Customer focus
Tier 1 Banks, Fintechs, Retail Banks, Payment Companies, Enterprise
Headquarters
London, United Kingdom (TransUnion acquisition, 2022)
Typical deployment
8–16 weeks
Capabilities and implementation
What this vendor profile covers
Use these published details to understand the vendor’s broad scope and implementation surface before moving into personalized analysis.
Directory detail
Public capabilities
- Behavioral Biometrics
- Device Intelligence
- APP Fraud
- Orchestration
- Confidence Score
- MFA
Directory detail
Deployment options
- Cloud / SaaS
- API
- On-Premise
Directory detail
Common integrations
- TransUnion data
- REST API
- Core banking
- IAM platforms
- Contact centre systems
Directory detail
Trust and support details
- SOC 2 Type II
- ISO 27001
- PCI DSS
- UK FCA Compliant
- Dedicated Account Management
- Professional Services
- 24/7 Support
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