Suspected state-sponsored hackers have been exploiting a zero-day vulnerability in Palo Alto Networks firewalls tracked as CVE-2024-3400 since March 26, using the compromised devices to breach internal networks, steal data and credentials. […]

from https://www.bleepingcomputer.com/news/security/palo-alto-networks-zero-day-exploited-since-march-to-backdoor-firewalls/