Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. US Scanning Cyberspace for Signs of Iranian Aggression Jeff Seldin WASHINGTON - U.S. government officials are watching and waiting, with many believing it is only a matter of time before Iran lashes out in cyberspace for the U.S. drone strike that killed Quds Force commander Qassem Soleimani last week. According to the latest advisory from the Department of Homeland Security, there are still "no specific, credible threats" to the United States. But officials say Iran's public assurances that it is done retaliating mean little. "Iran has been one of the most malicious actors out there," a senior State Department official said Thursday. "We're very concerned about Iran's capabilities and activities." U.S. government officials have been hesitant to comment in any detail on what Iranian cyber actors have been up to in recent days, though they note Iran's capabilities are on par with Russia, China and North Korea when it comes to using cyber to target industrial control systems or physical infrastructure. "DHS [Department of Homeland Security] is operating under an enhanced posture to improve coordination and situational awareness should any specific threats emerge," a department spokesperson told VOA. The spokesperson added DHS is coordinating with U.S. intelligence agencies, key private sector companies and organizations, and is ready to "implement enhanced security measures, as needed." .