Infoblox, a US company that sells networking and DNS security software, signed a definitive agreement to acquire Axur, a cybersecurity company founded in Porto Alegre, Brazil, that detects and removes threats aimed at businesses from outside their networks. The deal was announced on January 15, 2026. The price was not disclosed.
The two companies said they would operate independently until the deal closed, which was subject to regulatory approvals and expected in spring 2026. Infoblox announced on May 5, 2026 that it had completed the acquisition.
Infoblox said Axur would extend what it calls preemptive security, which tries to stop attacks before they reach users, to brand abuse, fraud, and stolen data and credentials found on the open web.
What Axur built
Fábio Ramos founded Axur in Porto Alegre in 2012. The company later moved its headquarters to Miami, Baguete reported, and the Brazilian outlet described it as one of the largest cybersecurity companies in Brazil. Ramos remained chief executive at the time of the deal.
Axur's platform scans the open web, the dark web, social networks, online marketplaces and app stores for phishing pages, fake profiles, impersonation of executives, leaked company data and pirated content. It uses AI to confirm that a threat is real, files takedown requests and keeps monitoring so the same threat does not come back.
According to Infoblox, Axur spots new phishing activity in under four minutes and succeeds with nearly 99% of its takedowns. Neither company disclosed Axur's revenue, customer count or headcount.
“Many modern attacks now start outside the traditional network, on fake websites, social platforms, app stores and search ads”
The founders and the funding
Axur raised a Series A from DGF Investimentos in 2019. In July 2023 it closed a Series B with Igah Ventures as the only investor. Bloomberg Línea described it as one of the largest investments Igah had made since it joined the Brazilian asset manager Pátria Investimentos in December 2022. The amounts of both rounds were not disclosed.
Startupi reported that Ramos planned to use the Series B to develop new products and grow an international team, with the aim of selling in more markets abroad. At the time he pointed to the rapid rise in cyberattacks, which he said had grown by more than 900% in 2021 compared with the year before.
On the sale, Stifel, Nicolaus & Company acted as Axur's financial adviser, with Bronstein, Zilberberg, Chueiri & Potenza Advogados and Cooley as its lawyers. Hogan Lovells and Levy & Salomão Advogados advised Infoblox.
Why Infoblox is buying
Infoblox sells DNS, network management and security services and says it has more than 6,000 customers, including 92 of the Fortune 100. Baguete reported that it is controlled by the private equity firms Warburg Pincus and Vista, which put $1.7 billion into the company in 2020.
Its argument for the deal is that many attacks now begin on fake websites, social platforms, app stores and search ads, well outside a company's own network, and that attackers are using AI to produce phishing and impersonation campaigns at scale. Axur finds and removes that infrastructure. Infoblox can stop a customer's users and systems from connecting to it at the DNS layer in the meantime. The companies said the combination could cut the median time an attack site stays live from days to hours.
Ramos said that joining Infoblox would let Axur scale its capabilities globally and add network and security context to its threat disruption work.
What happens to customers
When the deal closed in May, Infoblox said it would launch Digital Risk Protection Services (DRPS), built on Axur's technology, as the first part of a wider Infoblox Exposure Management offering. DRPS scans more than 40 million URLs a day to find and confirm phishing, brand abuse, executive impersonation and exposed credentials, and automates takedowns.
Findings from DRPS feed into Infoblox Threat Defense, which blocks the malicious destinations while takedowns are in progress and shows which internal assets have been communicating with them. Infoblox said it would integrate more of Axur's capabilities into its products over the following months. Ramos called the closing "an important milestone for Axur".
