Vietnam, India and Indonesia are the big botnet sources for next year’s distributed denial of service attacks, a report says. In 2014, China was the single biggest source of DDOS attacks, followed by the U.S. and Russia. Black Lotus Communications, a DDOS mitigation vendor, dealt with more than a million separate attacks so far this year. A single smartphone is already a powerful computing device, and when combined with wireless networks in extremely large numbers, they can add up to a significant threat.”]