The Big Hack: Inside the Chinese Cyberspies’ Bag of Tech Tricks

In the most significant known supply chain attack ever against U.S. companies, Chinese hackers implanted tiny microchips in servers that made their way into data centers of some of the world’s biggest companies, including Amazon.com Inc. and Apple Inc., according to a Bloomberg Businessweek investigation. Here are the nine most important takeaways from the cover story that outlines how it went down:

Aside from Amazon and Apple, the list includes almost 30 companies, including a major bank and government contractors. It was aimed at scooping up sensitive company trade secrets and national security data stored in government contractors’ computer networks, a U.S. official says.