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• Tracy is a tool for tracing and profiling software executions in DevOps workflows
• The tool can be used to detect and prevent supply chain attacks
• Tracy uses denial and allow lists to identify good and bad activity
• The tool extends profiles to include user ID, arguments, and environment variables
• Tracy can ignore certain system and environment variables to ensure consistency
• The tool uses syscall to collect information on executed binaries
• An anecdote is provided to illustrate how Tracy can detect a supply chain attack