Security experts and two former CIA officials said today that warnings of cyberattacks by al-Qaeda against western economic targets should not be taken lightly

Vince Cannistraro, the former chief of counterterrorism at the CIA, said that a number of Islamists, some of them close to al-Qaeda, have developed expertise in computer science. "And some are well schooled in how to carry out cyberattacks," he said. "We know from material retrieved from [al-Qaeda] camps in Afghanistan that this is true. But their expertise seems mostly dedicated to communicating securely among al-Qaeda cells. Cyberattacks would probably render them less secure by focusing attention on their location." In an exclusive interview with Computerworld on Monday, Sheikh Omar Bakri Muhammad, a London-based fundamentalist Islamic cleric with known ties to Osama bin Laden, said al-Qaeda and various other fundamentalist Muslim groups around the world are actively planning to use the Internet as a weapon in their "defensive" jihad, or holy war, against the West. Bakri, founder of the London-based group Jama'at Al-Muhajirun and the spokesman for Osama bin Laden's International Islamic Front for Jihad Against Jews and Crusaders, said all types of technology, including the Internet, are being studied for use against the West. His comments represent the first time that a high-profile radical Muslim cleric with known links to bin Laden has spoken publicly about the use of cybertactics for offensive purposes. Cyberterrorism experts offered mixed views of whether such attacks could, or would, be carried out.