UK spy agency MI5 has sent an unprecedented letter to 300 British business leaders, warning them that vital sectors of the country's economy are under attack from Chinese state-sponsored electronic espionage. The Chinese "use every means at their disposal" to dig up information about British companies, a letter recipient told the Times of London.
China's sophisticated web-based espionage is designed to foil even the best IT security. A major oil company and a large engineering firm are known to have been compromised recently by Chinese spying. The British alert follows a US congressional report last month that called Chinese espionage "the single greatest risk to the security of American technologies."