Rasmussen's comments stepped up Western rhetoric against Moscow and set the tone for the two-day meeting.
Weeks after the breach was discovered, investigators have traced the re-routed data to a Russian city, according to a Bloomberg report.
Sergei Lavrov also urged Kiev and pro-Russian rebels in eastern Ukraine to back peace moves outlined by President Vladimir Putin.
NATO's summit in Wales has one main topic: Russia and Ukraine. What are the alliance's options?
An inexperienced United States side secured a 1-0 victory over the Czech Republic in Wednesday’s friendly in Prague.
The $1.6 billion deal between Russia and France for two warships is on hold over the crisis in Ukraine.
After Steve Sotloff was beheaded by ISIS militants on Tuesday, Congress appears to be warming to U.S. military action in Syria.
On a flight to Mongolia, Putin sketched out a "plan of actions" for peace in Ukraine. The plan will be discussed on Friday at a Belarus summit.
In a speech in Estonia Wednesday, Obama also said NATO "must continue to stand united against Russia's aggression in Ukraine."
European Energy Commissioner Guenther Oettinger spoke to fears that Russia could cut off Europe's natural gas supplies in the winter.
Amid overall flat growth in air travel globally, Russian domestic air travel grew almost 10 percent in July.
David Cameron warned that Vladimir Putin must be stopped from seizing Ukraine — a situation that could lead to a new world war.
Ukraine's Poroshenko had earlier claimed in a tweet that a cease-fire was reached in a part of eastern Ukraine, but Russia refuted the claim.
Hackers who targeted JPMorgan last month were “a nation-state backed group” with “exceptional skills,” a former NSA chief told Bloomberg.
Australia, which will host a G20 summit in November, has said that opposition to Vladimir Putin's presence at the meeting is growing.
Russia denies its troops are involved in fighting on the ground, in the face of what Western countries and Ukraine say is overwhelming evidence.
With Apple readying its own big-screen device, the phablet wars are about to heat up.
Already targeted by sanctions from the Obama administration, a Russian bank has hired former Sens. John Breaux and Trent Lott as lobbyists.
GM’s 16-year joint venture with Lada owner AvtoVAZ is taking the Niva to the next level.
The United States men’s national team will play its first match since the 2014 World Cup when it takes on the Czech Republic in Prague on Wednesday.
Vladimir Putin's claims that he could take Kiev in two weeks have been taken out of context, says the Russian president's advisers.
More than one million people have been displaced by the conflict in Ukraine, including 814,000 Ukrainians now in Russia with various forms of status, the UNHCR United Nations refugee agency said on Tuesday.