Google Vertex AI security permissions could amplify insider threats

Google Vertex AI security permissions could amplify insider threats

By Evan Schuman
Publication Date: 2026-01-16 13:22:00

Flavio Villanustre, CISO for the LexisNexis Risk Solutions Group, warned, “A malicious insider could leverage these weaknesses to grant themselves more access than normally allowed.” But, he said, “There is little that can be done to mitigate the risk other than, possibly, limiting the blast radius by reducing the authentication scope and introducing robust security boundaries in between them.” However, “This could have the side effect of significantly increasing the cost, so it may not be a commercially viable option either.”

Gogia said the biggest risk is that these are holes that will likely go undetected because enterprise security tools are not programmed to look for them. 

“Most enterprises have no monitoring in place for service agent behavior. If one of these identities is abused, it won’t look like an attacker. It will look like the platform doing its job,” Gogia said. “That is what makes the risk severe. You are trusting components that you…