By: [Ravie Lakshmanan](/p/authors.html) Microsoft on Monday announced the seizure of 42 domains used by a China-based cyber espionage group that set its sights on organizations in the U.S. and 28 other countries pursuant to a legal warrant issued by a federal court in the U.S. state of Virginia. The Redmond company attributed the malicious activities to a group it pursues as Nickel, and by the wider cybersecurity industry under the monikers APT15, Bronze Palace, Ke3Chang, Mirage, Playful Dragon, and Vixen Panda. The advanced persistent threat (APT) actor is believed to have been active since at least 2012. “Nickel has targeted...