Estonia Cyberattack Highlights U.S. Concerns

Evidence is mounting that cyberwarfare tactics are part of the 21st-century arsenals of powers like Russia and China, yet the United States has not made Internet defenses a major priority. A two-week cyberattack on Estonia -- which overloaded government websites, knocked a bank's overseas customers offline, and caused Internet service to slow to a crawl -- has brought the issue to the fore for U.S. defense officials.

Read the article: The Washington Post