US spy chiefs used classified info to warn tech execs about doing business with China

US intelligence chiefs have been briefing Silicon Valley tech execs about the possible dangers of doing business in China, according to a report from the Financial Times.The briefings include warnings about the threat of cyber attacks and the theft of intellectual property, and have been held with groups including tech companies, universities, and venture capitalists in California and Washington.The meetings are the latest example of the US government’s increasingly combative stance towar