A Chinese government hacking group installed a malicious computer code in telecommunications systems in Guam and other locations in the United States, according to Microsoft. The Microsoft executive who oversees the company’s threat intelligence unit, Tom Burt, said Microsoft analysts discovered the mysterious code around the same time that the Biden administration recovered the Chinese spy balloon off the cost of South Carolina in February, according to The New York Times. The invasive code was installed in secret through routers and other internet-connected consumer devices, the Times reported, making the hack difficult to detect. Microsoft and the National Security Agency plan …