That is exactly how the Soviet control apparatus reasoned. They were protecting the motherland from external influence. Your reasoning doesn't differ from theirs in any way at all. You are completely aligned. Don't you think the Soviets were just as paranoid about external influence? While doing it themselves to other countries.
Fortunately in this case of Brazilian elections, there is nothing secret about the list of accounts which have been limited. The censors are very open about who has their account limited and why (all political candidates during elections). The control fantasies of hackers aren't aligned to reality in this affair. Only aligned to Soviet doctrines which have been obsoleted for 40 years now.