American Express has released EarlyBird, which can scan source code repositories (e.g. git repos), local files, or directories to identify sensitive data including clear text password violations, PII, outdated cryptography methods, and key files. EarlyBird includes modules that define configurable rule sets to evaluate filename patterns and file content patterns; and detect files containing strings with high Shannon entropy, credit card numbers, and commonly used passwords. In addition, users can also create new modules with custom rules.