Splunk DLP & Data Classification Guide | Nightfall Developer Platform

Guide to Data Protection, Classification, and DLP for Splunk

Discover, classify, and protect sensitive data in Splunk with Nightfall’s APIs. Improve security & compliance with cloud-native data protection.
The Challenge

Data Sprawl on Splunk

  • Splunk is an analytics platform for searching, monitoring, and analyzing machine-generated data. Sensitive data like PII, credentials & secrets sprawl into Splunk at an alarming rate. It’s nearly impossible to know what types of data are in Splunk through manual efforts.
  • Splunk doesn’t have enterprise-grade data protection, DLP, or data classification capabilities built-in.
  • Current data protection solutions are built for devices and networks, not cloud services like Splunk, so they are hard to implement. They aren’t flexible, accurate, or developer-friendly because they are primarily based on regular expressions and simple heuristics.
  • This can lead to productivity loss, risk of data breach, and compliance problems.
The Solution

Solving Data Sprawl on Splunk with Nightfall

Nightfall is a fully managed data security and data privacy service that uses machine learning to discover, classify, and protect your sensitive data. The Nightfall Developer Platform is a set of REST APIs that you can use to inspect data wherever it lives, on or off the cloud. With the Developer Platform, you'll be able to scan data in Splunk via their APIs.
  • Programmatically get structured results from Nightfall’s deep learning-based detectors for 150+ types of sensitive data like credit card numbers, API keys, and more. Nightfall maintains a growing list of sensitive data types that include common personally identifiable information (PII) and other sensitive data types as defined by data privacy regulations, such as GDPR, PCI-DSS, and HIPAA.
  • Deep-learning based detectors go well beyond regexes, rules, and search strings so you can make sense of your data without the alert fatigue. These detection techniques continually improve over time.
  • Customizable detection engine to tailor detectors and detection rules to your needs.
  • Custom-defined data types using regular expressions or word lists, to discover proprietary or unique sensitive data specific to your use cases.
  • Scan over 100+ file types, MIME-types and perform machine learning based optical character recognition (OCR) to extract text.
  • Nightfall Console enables you to create, save, and manage detection rules easily and flexibly in the UI to reference in code.
  • Integration example & starter code for integrating directly with Splunk so you don’t need to write the integration glue from scratch.
How It Works

Using Nightfall & Splunk APIs

  • Create an API key. Integrate with just a few lines of code.
  • Configure a detection rule. Set up detection rules as code or manage them in the Nightfall Console. Use our Playground to test detection rules easily.
  • Make your first API call. Scan text payloads or files with 150+ detectors trained via machine learning.
  • Read our integration example & starter code for Splunk. We make integration quick and painless with clear and comprehensive documentation.
curl --url https://api.nightfall.ai/v2/scan \
--request POST \
--header 'content-type: application/json' \
--header 'x-api-key: $NIGHTFALL_API_KEY' \
--data '{
    "payload": [
      "4916-6734-7572-5015 is my credit card number"
    "config": {
      "conditionSet": {
        "conditions": [{
          "minNumFindings": 1,
          "minConfidence": "LIKELY",
          "detector": {
            "displayName": "Credit Card Number",
            "detectorType": "NIGHTFALL_DETECTOR",
            "nightfallDetector": "CREDIT_CARD_NUMBER"
            "fragment": "4916-6734-7572-5015",
            "detectorName": "Credit Card Number",
           "confidence": "VERY_LIKELY",
            "location": {
                "byteRange": {
                    "start": 0,
                    "end": 19
                "unicodeRange": {
                    "start": 0,
                    "end": 19

Case Study

“The Nightfall Developer Platform allows us to scan for certain patterns of information, like social security numbers or credit cards. We can ensure that our internal communication stays as work-appropriate as possible.”

Tim Alman, Enterprise Process Solutions Manager
Use case: DLP & content moderation
Employees: 12,000+
Industry: Retail & Ecommerce

Get Started

It's free to get started with the Developer Platform. Sign up now to start classifying and protecting sensitive data, or read our API docs to learn more.
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