Google Disrupts UNC2814 GRIDTIDE Campaign After 53 Breaches Across 42 Countries
Feb 25, 2026
Cyber Espionage / Network Security
Google on Wednesday disclosed that it worked with industry partners to disrupt the infrastructure of a suspected China-nexus cyber espionage group tracked as UNC2814 that breached at least 53 organizations across 42 countries. "This prolific, elusive actor has a long history of targeting international governments and global telecommunications organizations across Africa, Asia, and the Americas," Google Threat Intelligence Group (GTIG) and Mandiant said in a report published today. UNC2814 is also suspected to be linked to additional infections in more than 20 other nations. The tech giant, which has been tracking the threat actor since 2017, has been observed using API calls to communicate with software-as-a-service (SaaS) apps as command-and-control (C2) infrastructure. The idea, it added, is to disguise their malicious traffic as benign. Central to the hacking group's operations is a novel backdoor dubbed GRIDTIDE that abuses Google Sheets API as a communication ...