BOSTON (Reuters) - Several U.S. power utilities say they face constant cyber attacks on critical systems, according to a report by two Democratic lawmakers amid warnings from the Obama administration that foreign hackers are seeking to attack the electric grid. Congressmen Edward Markey of Massachusetts and Henry Waxman of California disclosed their findings on Tuesday as the House Energy and Commerce Committee held a hearing on cybersecurity.

Japan and the United States concluded their first comprehensive dialogue on cyber defense on Friday after exploring new areas of cooperation, they said in a joint statement. During the two-day meeting in Tokyo, Japanese and U.S. officials also identified actions that governments and private-sector entities can take to secure critical infrastructure, and affirmed the application of "norms of responsible state behavior" in cyberspace, according to the statement.

WASHINGTON - The Pentagon for the first time used its annual report on China to directly assert that Beijing's government and military have conducted computer-based attacks against the U.S., including efforts to steal information from federal agencies.

A Spanish court remanded in custody a Dutchman suspected of disrupting Internet services in a massive cyber-attack allegedly launched from his hi-tech bunker in Spain, officials said Monday. A judge in Madrid on Saturday ordered the suspect to be held in custody pending a decision on whether to extradite him to the Netherlands, said a judicial source who asked not to be named. Police seized the suspect, a 35-year-old from Alkmaar in the Netherlands, in Granollers near Barcelona on Thursday, under a European arrest warrant after last month's attack.