Brazil Receita Federal named by Emperador

Update 9 October 2026: no official confirmation emerged about the alleged intrusion attributed to Emperador against Brazil’s Receita Federal do Brasil. At the same time, Receita Federal released August 2026 collection results and year-to-date figures through August, with record highs in both periods.

The ransomware group Emperador reportedly claimed Brazil’s Receita Federal do Brasil as a victim and said it obtained 6.3 GB of information, according to secondary posts cited by Hackmanac, Techstart and Dexpose. The alleged leak would include personnel documents, taxpayer records, data tied to gov.br users, and passwords, but there is still no official confirmation of an intrusion or of the files being taken.

What is Emperador claiming?

Emperador said it attacked Brazil’s Receita Federal do Brasil and exfiltrated 6.3 GB of data, according to the secondary posts reviewed. The description includes documents tied to personnel, taxpayer records, and material associated with gov.br users, along with passwords.

The reference to the case appeared on the group’s leak portal, according to Techstart. Dexpose repeated the same attribution and detailed the alleged exfiltration of personnel, customer and gov.br user information, together with passwords.

What is known about official confirmation?

So far, there is no independent official confirmation of an intrusion or of the release of the files announced, according to Techstart’s Spanish-language coverage. That point is central to reading the case, because the only verified elements in the available material are the public claim attributed to the group and its appearance on a leak portal.

Hackmanac was the first of the provided sources to mention the public claim and the volume of data Emperador said it had. The other two reports, Techstart and Dexpose, matched in describing an alleged compromise of Brazil’s Receita Federal do Brasil, but they did not provide official validation of the incident.

What did Receita Federal report on revenue?

Receita Federal said federal tax collection totaled R$ 235.566 billion in August 2026, up 8.25% in real terms from August 2025. It also said Receita Federal administered revenue reached R$ 227.865 billion, a real increase of 8.24%.

According to Receita Federal, August 2026 marked the best collection result for that month in its historical series. Agência Brasil added that the increase was driven by Social Security, PIS and Cofins, as well as IRRF, IRPJ and CSLL.

What happened in the year-to-date total?

Receita Federal reported two different readings for the January to August 2026 total in the provided sources. Rádio Pampa put it at R$ 2.019 trillion, while Diário do Grande ABC cited R$ 2.112 trillion and described it as the highest figure for that period since 2000.

Agência Brasil added that the Export Tax on crude oil brought in R$ 1.9 billion in August and R$ 9.9 billion from January through August. Valor Econômico also reported that withholding income tax on dividend payments brought in R$ 4.029 billion in the same period, and that Receita Federal revised its 2026 revenue estimate tied to dividends.

The August revenue briefing, according to the material provided, also included other specific figures: IRRF on capital income reached R$ 12.7 billion in August, up 33.21% year over year in real terms, and the Import Tax plus IPI totaled R$ 11.8 billion, up 22.66% in real terms.