In Kazakhstan, the events last month illustrate how an internet shutdown can exacerbate an already chaotic situation. The technical roots of the shutdown go back to at least 2015, when the country tried to emulate its neighbors, China and Russia, which have for years practiced internet censorship. Authorities in those countries have developed methods for snooping on communications and built armies of hackers and trolls that can target opponents.
Last year, Russia slowed Twitter traffic during protests related to the opposition leader Alexei Navalny, a delay that has continued. China has built an arm of the police to arrest those who speak out online and commands thousands of volunteers who post positive comments to cheer on government initiatives.
Kazakhstan authorities tried developing similar technical tools for surveillance and censorship without severing the key connections necessary for its economy to function, according to civil society groups and activists.
Last month, Kazakhstan plunged into disarray as anger over rising fuel prices grew into broad demonstrations, leading to a Russia-led military intervention. As the government cracked down, the protests turned violent. Dozens of antigovernment demonstrators were killed, and hundreds more were injured.
To prevent protesters from communicating and sharing information, Kassym-Jomart Tokayev, Kazakhstan’s president, turned to a digital scorched-earth policy akin to one in Myanmar last year that took the entire internet offline. In Myanmar, the military staged a coup, and soldiers took over the data centers run by the country’s telecom companies.
In Myanmar and Kazakhstan, the lack of internet heightened the confusion. In the event of a conflict in Ukraine, that added confusion would be a part of the point, Mr. Klimarev said.