Sensitive data leaked last night. Passwords, keys, and tokens sat in plain text in logs no one was meant to see. This should never happen.
Zero Trust security demands you assume breach at all times. No user, service, or network is to be trusted by default. Masking sensitive data is not optional—it is core to keeping control when every request must be verified and every secret kept hidden.
Mask sensitive data at the point of capture. Detect patterns like API keys, JWTs, credit card numbers, or PII before they are written anywhere. Replace them with irreversible tokens or fixed placeholders. Do it in real time, before the data touches disk or leaves the process boundary.
Log scrubbing is not enough. If sensitive data reaches a datastore, backup, or analytics pipeline, it is already a liability. Build data masking into middleware, observability agents, and message brokers. Apply these rules uniformly across microservices, internal APIs, and event streams.