Features like records immutability, traceability, and programmability could block unauthorized deductions from pension benefits
06/03/2025
Blockchain technology could have prevented a multi-billion fraud that hit Brazil’s National Institute of Social Security (INSS), according to technology specialists consulted by Valor. Key features of blockchain—such as immutability of records, traceability, and programmability—would help stop unauthorized deductions from social security benefits.
Edilson Osório, founder of the blockchain authentication company OriginalMy, notes that blockchain alone wouldn’t resolve all problems. However, the fraud could have been entirely avoided by combining blockchain networks with digital identity systems.
The main advantage is that all information recorded on a blockchain is immutable. In other words, it cannot be edited or altered once entered. According to Mr. Osório, tying the authorization of payroll deductions to a signature that validates a retiree’s digital identity would ensure verified consent and offer irrefutable proof of when that consent was given.
The Brazilian government already uses blockchain to register the National Identity Card (CIN), which includes a digital version integrated with the gov.br platform. Since 2023, the “b-Cadastros” solution—a shared blockchain registry developed by the Federal Revenue Service in partnership with Serpro—has been used to issue the CIN. The document aims to centralize the CPF (individual taxpayer number) as the sole reference for accessing public services like SUS (public healthcare), INSS, Bolsa Família, and voter registration. Public Management Minister Esther Dweck has stated that the CIN seeks to eliminate fragmented civil records.
However, the INSS systems affected by the fraud do not yet use such technology. Caroline Nunes, founder of InspireIP—a blockchain-based intellectual property registry platform—says that Brazil’s social security systems suffer from fragmented data across different databases developed in various generations of IT infrastructure. “The INSS systems are connected via APIs or other types of interfaces. We’re dealing with information transfers between systems and agencies,” she explains.
All information registered on a blockchain is immutable: it cannot be edited or altered.
Murilo Cortina, head of new business at QR Asset, argues that the current system is vulnerable to unauthorized changes, deletions, or data entries by individuals with privileged access. “Blockchain technology, which underpins the entire crypto ecosystem, proposes a new architecture for storing and verifying data. Each record is validated by multiple independent parties—called nodes—that share an identical copy of the full history. This eliminates the risk of unilateral manipulation and ensures that everyone sees the same version of events,” he says.
According to Ms. Nunes, it would be possible to migrate all systems to an interoperable blockchain shared among government agencies, such as the Drex platform currently under development by Brazil’s Central Bank. Drex is a “tokenized” infrastructure for the financial system. “Drex could significantly advance blockchain identity. You could register the ID on the network just like a physical identity card, but on the blockchain,” she suggests.
A critical challenge would be adapting the system’s usability for retirees, many of whom are not comfortable using digital platforms. Mr. Osório proposes linking a digital identity app to a physical card, which could be used to sign authorizations. “A person would go to an INSS office, insert the card, and enter a PIN. Then, the office could proceed on their behalf,” he explains.
When asked for comment, the INSS said it monitors blockchain developments but has no active studies regarding its implementation. “While the INSS monitors the evolution of technologies such as blockchain and recognizes their potential for enhancing security and transparency, we inform that there are currently no ongoing studies for its specific adoption in payroll-deductible or association-linked discounts,” the institute said in a statement.
*By Ricardo Bonfim — São Paulo
Source: Valor International
https://valorinternational.globo.com/