Scam Signal: Telcos Worldwide Join Forces Against Social Engineering Fraud

Authorised Push Payment (APP) fraud has become a significant financial crime in UK, resulting in GBP 450.7 million in losses in 2024. To address this growing threat, UK Finance, GSMA, UK mobile operators (Vodafone, EE, and Virgin Media O2) and the UK banks collaborated to create Scam Signal, an API that uses real-time mobile network intelligence to detect scam indicators and support banks in preventing fraudulent transactions.

Scam Signal API is now live across major UK networks, covering 85% of mobile users. Through JT and FICO, it has been deployed with UK banks providing improved detection rates of up to 40% and false positive rate of 3:1. A global rollout is now underway.