Mask a String Except the Last 4 Characters in Java
Mask a string except the last 4 characters in Java with repeat() or a regex lookahead, keeping dashes in card and phone numbers, null-safe.
Masking Sensitive Data with Logback
Masking sensitive data in logback logs is done by partially or fully replacing the client-sensitive data or NPI (nonpublic personal information) with some arbitrary encoded text. For example, the SSN information can be replaced with all star characters or we can remove the complete SSN information from the logs. 1. …
Mask Sensitive Data in Logs in JavaScript (JSON and pino)
Mask passwords, card numbers, emails and tokens before they reach a log file, using a JSON.stringify() replacer, a structuredClone() copy, regex for free text, toJSON(), and pino’s redact option.