Obama Vows to Address 'Significant Vulnerabilities' After Latest Cyberattack

President Obama acknowledged the U.S. government needs to address "significant vulnerabilities" in its technology systems, commenting for the first time on the recent cyberattack that compromised the personal information of 4 million current and former government employees. ABC News reports.

"We have known for a long time that there are significant vulnerabilities and these vulnerabilities are going to accelerate as time goes by," the president said at a news conference at the G7 Summit in Germany today.

Obama would not comment on who perpetrated the most recent hacking, but said both state and non-state actors are targeting the United States.

"Both state and non-state actors are sending everything they've got at trying to breach these systems," the president said. "We have to be as nimble, as aggressive and as well-resourced as those trying to break into this system."

The president said the government is working to enhance its practices and upgrade its system to prevent future hacks.

Obama's news conference came at the end of the two-day G7 summit, where he huddled with top world leaders to discuss issues ranging from the threat of extremists to climate change.

Throughout the G7 summit, Obama urged his European partners to extend economic sanctions in Russia until the Ukraine ceasefire is fully implemented. In a declaration released today, the G7 leaders said they agreed to this extension.

"Sanctions against Russia will remain in place." the president said. "We stand ready to impose additional significant sanctions against Russia."

ISIS was also high on the agenda with President Obama meeting one-on-one with Iraqi Prime Minister Haider al-Abadi to discuss the strategy to combat the group in Iraq. It was their first meeting since ISIS fighters took control of Ramadi last month.