HomeSmall business security/ResourcesCustomers Global Giants Join Forces in Cybersecurity Telefonica is one of the largest broadband and telecommunications providers in the world. Telefonica is constantly looking for partners with complementary skills and expertise, to inform and enhance its solutions. Read now Latest Articles What is a Smurf Attack? What is Cloud Antivirus? What Is the Koobface Virus? What Is a Replay Attack? What is Ransomware?