The personal Instagram account of Ukrainian Armed Forces Commander-in-Chief Gen Valeriy Zaluzhnyy was hacked, popular blogger Col Anatoliy Shtefan has said on Telegram.
Efforts are being taken to restore access to the account.
The hackers made a post, as if written by Zaluzhnyy, to make it look as he confirms the breaking into Ukraine's Delta situational awareness system.
These days Russia has launched a new information attack on the Delta system used by the Ukrainian Armed Forces. Russia propaganda started claiming that the system was hacked in order to discredit it.
In the summer, unknown individuals created a fake Twitter page of Zaluzhnyy.