SternisheFan writes in with this Times article about more trouble brewing between the U.S. and Iran. "American intelligence officials are increasingly convinced that Iran was the origin of a serious wave of network attacks that crippled computers across the Saudi oil industry and breached financial institutions in the United States, episodes that contributed to a warning last week from Defense Secretary Leon E. Panetta that the United States was at risk of a 'cyber-Pearl Harbor.' After Mr. Panetta's remarks on Thursday night, American officials described an emerging shadow war of attacks and counterattacks already under way between the United States and Iran in cyberspace. Among American officials, suspicion has focused on the 'cybercorps' that Iran's military created in 2011 — partly in response to American and Israeli cyberattacks on the Iranian nuclear enrichment plant at Natanz — though there is no hard evidence that the attacks were sanctioned by the Iranian government. The attacks emanating from Iran have inflicted only modest damage. Iran's cyberwarfare capabilities are considerably weaker than those in China and Russia, which intelligence officials believe are the sources of a significant number of probes, thefts of intellectual property and attacks on American companies and government agencies."