Ótima Digital Group, one of the four largest telecommunications companies certified by Anatel and a broker for telephone carriers in Brazil, has excelled in protecting against text message fraud. With a daily volume of over 25 million communications (SMS and RCS), the company has invested in a robust solution capable of filtering 98% of malicious messages, ensuring user security.
Ótima Digital Group's security strategy involves a multi-layered approach combining rigorous authentication and encryption practices. These measures have been fundamental in drastically reducing the incidence of SMS scams, a criminal practice aimed at deceiving victims and extracting sensitive information. According to the 17th Brazilian Yearbook of Public Security, an average of 208 occurrences of this type of crime were recorded per hour last year.
Fábio Manastarla Ferreira, a security specialist at Ótima Digital Group, highlights the adoption of the “security by design” principle. “Here at Ótima Digital, no new server is enabled without security templates and applications being applied,” states Ferreira. This proactive method protects against known threats and adapts to defend against new types of attacks.
Two-factor authentication is a fundamental measure adopted by all of the Group's services. This extra layer of security ensures that even if a criminal obtains a customer's username and password, they will still need a second factor—usually a code sent via SMS or an authentication token—to access the account. “With this key, which may seem small, you already prevent 98% of fraud,” emphasizes Ferreira.
All communications between Ótima Digital Group and its major partners, such as carriers, Google, and Meta, are encrypted. “Encryption is applied both in SMS delivery channels and in other forms of digital communication, keeping user data safe and private, protecting them from malicious interception,” states Ferreira.
Ferreira also emphasizes the importance of the advanced edge control infrastructure, known as BGP (Border Gateway Protocol), which helps manage the routing and delivery of data packets, minimizing the chances of attacks and interception.
Despite technological advancements, Ferreira warns about the importance of consumer education. He suggests that users always verify the authenticity of websites and messages they receive, especially when they contain external links. “It is essential to pay attention to the links that are received!” he concludes.
