# regex
4 articlestagged with “regex”
Input/Output Filtering Systems
Deep dive into regex, ML classifier, and embedding-based filters for both input scanning and output scanning, with systematic bypass techniques for each type.
input-filteringoutput-filteringregexml-classifierembeddingbypassevasion
Lab: Build Your First Defense
Hands-on lab for building a basic AI input defense system using keyword matching, regex filters, and simple classifiers to block prompt injection attempts.
labdefenseinput-filterregexbeginner
Regex Filter Bypass Walkthrough
Systematically bypass regex-based input filters using Unicode tricks, encoding, and pattern-specific evasion.
walkthroughsregexfilter-bypassevasion
Regex-Based Prompt Filter
Step-by-step walkthrough for building a regex-based prompt filter that detects common injection payloads using pattern matching, covering pattern library construction, performance optimization, false positive management, and continuous updates.
regexprompt-injectionpattern-matchinginput-filteringdefensewalkthrough