WARSAW—Top Polish government officials have been hit by a far-reaching cyber attack conducted from Russian territory, Poland’s de facto leader Jaroslaw Kaczynski said on Friday in his first official statement on an email hacking incident this month. Kaczynski, who is deputy prime minister, said those targeted included ministers and lawmakers of various political parties. “The analysis of our services and the secret services of our allies allows us to clearly state that the cyber attack was carried out from the territory of the Russian Federation. Its scale and range are wide,” he said on the government website. The Russian government and the Kremlin have repeatedly denied carrying out or tolerating cyber attacks following allegations from the United States about cyber attacks on U.S. territory, Ukraine, and Saudi Arabia. Polish media reported earlier this month that e-mails sent by some government officials from their private email boxes, including those of the …