Hacktivist Exploitation of Zero-Day Vulnerabilities in Latin America: A Rising Threat

In recent years, Latin America has witnessed a surge in cyberattacks attributed to hacktivist groups leveraging zero-day vulnerabilities. These vulnerabilities, previously unknown to software vendors, are exploited by attackers to gain unauthorized access to systems, often resulting in substantial data breaches and operational disruptions.

Emergence of Hacktivist Groups in Latin America

Hacktivism in Latin America has gained prominence through groups like Guacamaya, which has targeted various entities across the region. In 2022, Guacamaya was responsible for hacking the Guatemalan mining company Compañía Guatemalteca de Níquel (CGN), exposing sensitive documents that revealed payments to Guatemalan police for the persecution of activists opposing the "Fénix" mining project in El Estor, Guatemala. (en.wikipedia.org)

Exploitation of Zero-Day Vulnerabilities

Zero-day vulnerabilities are flaws in software that are unknown to the vendor and have no available patch, making them highly valuable in the cyber threat landscape. Hacktivist groups have increasingly targeted these vulnerabilities to execute cyberattacks. For instance, in 2025, there was a 46% year-over-year increase in zero-day exploitation, with products from 27 vendors being impacted, including Microsoft and Google. (infosecurity-magazine.com)

Role of Exploit Brokers

Exploit brokers act as intermediaries in the cyber threat ecosystem, acquiring and selling zero-day vulnerabilities. A notable example is Operation Zero, a Russian firm that has been sanctioned by the U.S. government for acquiring stolen U.S. government cyber tools. Between 2022 and 2025, Operation Zero purchased eight zero-day exploits from a U.S. defense contractor executive, highlighting the lucrative market for such vulnerabilities. (securityweek.com)

Impact on Latin America

The exploitation of zero-day vulnerabilities by hacktivist groups in Latin America has led to significant cyber incidents. In 2025, there was a sharp rise in ransomware and hacktivist attacks across the region, with Brazil being the most targeted country. These attacks have disrupted critical sectors, including government services, healthcare, and financial institutions. (industrialcyber.co)

Conclusion

The increasing use of zero-day vulnerabilities by hacktivist groups in Latin America underscores the need for enhanced cybersecurity measures. Organizations must prioritize timely patching of software vulnerabilities, conduct regular security assessments, and foster collaboration with international cybersecurity entities to mitigate the risks associated with such sophisticated cyber threats.