Hackers working on behalf of the Chinese government have broken into the computer networks of at least six state governments in the United States over the past year, according to a report released Tuesday by a private cybersecurity firm. . Mandiant’s report does not identify the compromised states or offer a motive for the intrusions, which began last May. But the Chinese group allegedly responsible for the breaches, APT41, is known to launch hacking operations both for old-fashioned espionage and for profit. “While the ongoing crisis in Ukraine has rightly captured the world’s attention and the potential for Russian cyber...