Cloud logging services act as the ultimate security cameras for your digital infrastructure. Tools like Amazon Web Services (AWS) CloudTrail and Google Cloud Logging provide total visibility into every action performed within your environment.
Because these logs are essential for tracking operational behavior and security events, they have become high-value targets for modern threat actors.
By weaponizing these very services, attackers can create blind spots to evade detection or set up stealthy pipelines to exfiltrate data.
Every major cloud provider handles logging slightly differently. In AWS, a “trail” captures application programming interface (API) calls and delivers them to an S3 bucket for long-term storage.
In Google Cloud, a “sink” acts as a router that funnels event data into designated log buckets. While these setups are powerful for defenders, they introduce risky vulnerabilities if an attacker gains access to their configuration settings.
When attackers target these logging ecosystems, they generally pursue two main goals. First, they want to blind your defense systems so they can operate unnoticed.
Second, they aim to establish continuous visibility into your environment, secretly copying your logs to map your network and steal data. Understanding these tactics is critical for securing your cloud architecture.
Cloud Logs Enable Exfiltration
To stay hidden within a compromised cloud environment, attackers often tamper with the mechanisms that security teams rely on.
Security information and event management (SIEM) systems and cloud security posture tools depend entirely on continuous log data to trigger alerts.
When an attacker cuts off this data supply, they effectively shut down your alarm systems and extend the time it takes for them to operate.
According to paloaltonetworks research, they want to monitor your operations without triggering alerts. Instead of running noisy discovery commands that security tools easily catch, they can hijack your log routing systems.
This turns your own security cameras against you, feeding real-time intelligence directly to the attacker’s infrastructure.
This continuous stream of data enables attackers to passively monitor new virtual machine deployments, track permission changes, and identify sensitive data access points.
To defend against these threats, organizations must strictly limit who can alter logging configurations.
Apply the principle of least privilege to API commands and leverage immutable storage options, such as Google Cloud’s built-in log buckets or AWS CloudTrail’s locked event history, to ensure your critical security records remain intact.
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