Cybersecurity, telecom, data centers and governance, in the language of those who decide.https://blog.leandroneves.net/enhttps://blog.leandroneves.net/en/posts/brazilian-time-foreign-signal/https://blog.leandroneves.net/en/posts/brazilian-time-foreign-signal/Brazil has its own legal time, backed by a 1913 statute and atomic clocks at the National Observatory. But the rules that oblige the financial and power sectors to synchronize say nothing about where the signal must come from — and in practice it comes from constellations the country does not control.Mon, 07 Sep 2026 09:00:00 GMTsateliteenergiacibersegurancaresilienciahttps://blog.leandroneves.net/en/posts/low-medium-and-geostationary-orbit/https://blog.leandroneves.net/en/posts/low-medium-and-geostationary-orbit/In 2026 there are more than 11,000 Starlink satellites in orbit and no inhabited region left without possible coverage. Brazil is buying a geostationary satellite anyway. That is not a contradiction: the three altitudes solve different problems.Sun, 06 Sep 2026 09:00:00 GMTsatelitetelecomsgdchttps://blog.leandroneves.net/en/posts/tier-iv-what-it-really-means/https://blog.leandroneves.net/en/posts/tier-iv-what-it-really-means/Is a Tier IV data center just a data center with a lot of redundancy? No. And perhaps the best way to understand the difference is to start with energy.Sat, 05 Sep 2026 21:49:47 GMTdatacenterenergiasgdctier-ivhttps://blog.leandroneves.net/en/posts/6th-espaco-em-pauta-webinar/https://blog.leandroneves.net/en/posts/6th-espaco-em-pauta-webinar/I took part in the 6th Espaço em Pauta webinar, run by Brazil's Institutional Security Cabinet, on space as an element of national strategic autonomy, representing Telebras. The lens of the Brazilian Defense College helps explain why this is a matter for senior management, not only for engineering.Sat, 05 Sep 2026 12:00:00 GMTtelecomsatelitesgdcesd