China’s top spy agency has announced measures to fight infiltration by "hostile forces” in companies and other institutions, state media said, in the latest sign of businesses getting caught in the competition between Beijing and Washington.

The new rules allow Chinese security authorities to draw up lists of companies and organizations considered susceptible to foreign infiltration and require them to take security measures, the official Xinhua News Agency said Monday, citing a senior official with the Ministry of State Security.

"Overseas espionage and intelligence agencies and hostile forces have intensified infiltration into China, and broadened their tactics of stealing secrets in various ways and in more fields, which poses a serious threat to China’s national security and interests,” Xinhua said.