TeleSign

TeleSign provides programmable APIs for verifying users and communicating with them across the global telecom network. Its products help online businesses confirm that customers are genuine and protect accounts against fraud.

What TeleSign offers

• Phone number and SMS verification — checks that a customer is who they claim to be.
• Voice and text messaging — account verification and purchase confirmations worldwide.
• Phone number intelligence — data insights and risk and reputation scoring.
• Fraud protection — defences against account takeover, synthetic identities, promotion abuse and IRSF attacks.
• Onboarding tools — verification steps designed to add little friction.

Who it works with

Online brands that need secure sign-up and communication. The firm also publishes research on consumer attitudes to AI and trust.

Key facts

• Delivery: APIs for developers
• Coverage: many countries and territories worldwide