Starlink users in Ukranian should only turn on the system when needed, as they may be targeted in the ongoing war, according to Musk.

The only non-Russian communications system that is still working in some parts of Ukraine is Starlink, so the likelihood of being targeted is high, wrote Musk on Friday.

The CEO of the company advised users to place the antenna far away from people and to cover it with camouflage to avoid detection.

—Elon Musk (@elonmusk) March 3, 2022
—Elon Musk (@elonmusk) March 3, 2022

A security researcher told CNN that anyone setting up a Starlink dish in Ukraine needs to consider it a potential giant target.

Nicholas Weaver of the University of California at Berkeley explained to the network that if an adversary has a specialized plane aloft, it can detect a satellite signal and home in on it.

Musk said over the weekend that he activated his Starlink internet service in Ukraine after Mykhailo Fedorov, the minister of digital transformation, requested more Starlink stations as the Russian invasion is disrupting the country.

On Monday, Fedorov posted a photo that appears to show a truckload of Starlink terminals and thanked Musk.

The terminals look like home satellite dishes and connect to Starlink satellites to access high-speed internet. A standard Starlink kit costs $499.