News Telefónica Integrates Chainlink Functions on Polygon Mainnet to Safeguard Against SIM Card TamperingBy AnnJoy Makena16. February 2024 Telefónica and Chainlink fight SIM swap attacks by integrating Chainlink’s oracle network with Telefónica’s GSMA Open Gateway APIs. Chainlink Functions connect APIs to Polygon’s blockchain network, bolstering transaction security and…