Nullafi: Like a Redaction Firewall for Your Sensitive Data
Not everyone should see credit card numbers, SSNs, or PII. And with Nullafi Shield, they won’t.
We automatically detect and redact sensitive data before it reaches the wrong eyes. Doesn’t matter what tool – SaaS apps, AI systems, collaboration software – we handle it all.
No integrations. No endpoints. Just pure, dynamic data protection.
Detects Data in Transit
Scans traffic in real time.
Redacts or Masks Automatically
Based on policy, user, app, or content.
Enforces Access Rules
Even across unstructured text, AI prompts and agents, and browser apps.
How It Works
Nullafi uses its 17 patents to deliver a unique multi-layered engine that detects and controls sensitive data — structured or unstructured — with speed and precision. Nullafi Shield is a dynamic data protection platform that can sit between your apps and endpoints, cutting off unauthorized data access before sensitive data is even displayed.
It doesn’t matter where the data is from, how it’s labeled, or where it’s going – Nullafi locks it down. Our solution scans for sensitive data zipping across HTTP/HTTPS traffic. Backed by years in the lab and 17 patents, here’s exactly how we crush data detection:
Figure 1: Nullafi Shield sits between applications and endpoints and simply “ties in” with existing network technology to obfuscate individual data elements according to the user’s identity, before they get to the user’s device.
Pattern Matching
High-performance regex engines optimized for speed and scalability in enterprise environments
Extensive, customizable pattern libraries covering a wide range of sensitive data types, including PII, PCI, PHI, and more
Advanced probabilistic automata to handle complex expressions while minimizing false positives
Fingerprinting
Robust hashing algorithms that generate unique, privacy-preserving fingerprints for sensitive records
Partial-match detection capabilities that identify fragments of data, even when full records are not present
Fuzzy matching using locality-sensitive hashing (LSH) to catch variations in data structure or content
Keyword Matching
Optimized trie-based search structures enable ultra-fast keyword lookup and detection
Comprehensive, multilingual dictionaries support global deployments and regional compliance needs
Semantic analysis enhances keyword detection by identifying synonyms, variants, and linguistic nuances
Data Classification
Hierarchical classification models segment data into highly specific categories
Customizable classification policies empower organizations to define rules aligned to business and compliance requirements
Automated labeling engine ensures consistent tagging and policy enforcement at scale
Contextual Analysis
Detection that evaluates surrounding data for accurate classification and policy decisions
Semantic interpretation that distinguishes between similar-looking data types (e.g., numerical IDs vs. credit card numbers)
Structural analysis of documents and metadata enhances precision and reduces false positives
Database Fingerprinting
Cryptographic, non-invasive fingerprinting of database records for secure and privacy-preserving monitoring
Instant anomaly and leak detection without needing to store or access raw sensitive data
Real-time fingerprint synchronization ensures continuous protection against new and evolving threats
Machine Learning & AI (Coming Soon)
Ensemble learning approaches that combine multiple models for improved accuracy and resilience
Deep learning techniques capable of recognizing complex, high-dimensional data structures
Continuous online learning enables adaptive improvements based on new data and threats
Advanced natural language processing (NLP) to detect and classify data with contextual intelligence
Exact Data Matching
Highly efficient Bloom filters for rapid, memory-light matching of known sensitive values
Data normalization and tokenization pipelines ensure consistent matching across varied formats and encodings
Distributed caching for high-throughput, low-latency performance across large-scale datasets
Nullafi effortlessly blends these cutting-edge detection methods, running real-time scans on data speeding through HTTP/HTTPS traffic. Engineered in Go for unmatched performance, Nullafi offers:
Adaptive Scanning
Automatically selects the most effective detection techniques in real time
Exceptionally Low False Positives
Multiple detection methods work in concert to ensure accuracy and reduce noise, enabling more confident decisions
Enterprise-Grade Scalability
Optimized to handle large volumes of data traffic without performance degradation
Continuous Innovation
Regular updates to detection models ensure readiness for new data patterns, threats, and compliance requirements
Flexible Customization
Fine-tune detection logic and policies to align precisely with your organization’s needs, with no tradeoffs, no black boxes
Why Nullafi? Because Your Data Deserves Better
Total Access Control
Plain-Language Policies
Full Audit Logs
Intercepts Data Before Display
Security on Your Terms
Works with Any App
Flexible Deployment Options
Our unified, multi-channel architecture automatically scans, classifies, and controls data in motion across diverse environments, ensuring sensitive information stays protected no matter where it flows. We offer a wide range of deployment options to meet your infrastructure needs:
ICAP Integration
Drop-in for secure web gateways and proxies.
Sidecar for Kubernetes
Built for scale, made for speed.
API Support
Seamless protection for messaging and chat platforms.
Proxy for ODBC/BI Tools
Lock down data platforms like Snowflake, Databricks, BigQuery.
Time to Get Serious About
Data Security
Because hope isn’t a security strategy.
