The number of Cisco IOS XE devices hacked with a malicious backdoor implant has mysteriously plummeted from over 50,000 impacted devices to only a few hundred, with researchers unsure what is causing the sharp decline. […]

from https://www.bleepingcomputer.com/news/security/number-of-hacked-cisco-ios-xe-devices-plummets-from-50k-to-hundreds/