Ótima Digital Group, one of the four largest telecommunications companies approved by Anatel and a broker for telephone operators in Brazil, has distinguished itself in protecting against fraud in text messages. With the daily sending of more than 25 million communications (SMS and RCS), the company invested in a robust solution capable of filtering 98% of malicious messages, guaranteeing user security.
The security strategy of the Ótima Digital Group involves a multi-layered approach that combines 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 incidents of this type of crime were recorded per hour last year.
Fábio Manastarla Ferreira, a security specialist at Grupo Ótima Digital, highlights the adoption of the "security by design" principle. "Here at Ótima Digital, no new server is enabled without the 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 seems small, you already prevent 98% of fraud," Ferreira points out.
All communications between Grupo Ótima Digital and its major partners, such as operators, Google, and Meta, are encrypted. "Encryption is applied to both SMS sending channels and other forms of digital communication, keeping user data secure and private, protecting it from malicious interception," says Ferreira.
Ferreira also highlights the importance of advanced edge control infrastructure, known as BGP (Border Gateway Protocol), which helps manage routed and delivered data packets, minimizing the chances of attacks and interceptions.
Despite technological advancements, Ferreira emphasizes the importance of consumer education. He suggests that users always verify the authenticity of websites and messages they receive, especially those containing external links. "It's essential to pay attention to the links you receive!" he concludes.
