Audio redaction is the process of removing or muting sensitive information such as names, phone numbers, addresses, or credit card details from an audio recording. Automated audio redaction software like CaseGuard automatically scans and detects more than 30 categories of sensitive data, including PII and PCI. Once identified, the software can mute, bleep, or remove the information entirely, creating a secure redacted audio file. Users can also redact custom keywords or phrases directly from transcripts, making the process highly accurate, customizable, and much faster than manual redaction.