Data Loss Prevention (DLP)

Security technologies and practices that detect and prevent unauthorized transmission, access, or exfiltration of sensitive data from an organization.

Also known as:DLPData Leak PreventionInformation Loss Prevention

What is Data Loss Prevention?

Data Loss Prevention (DLP) encompasses strategies, processes, and technologies designed to detect and prevent the unauthorized use, transmission, or exfiltration of sensitive data. DLP solutions monitor data in motion, at rest, and in use to enforce data protection policies.

DLP Categories

Network DLP

  • Email scanning
  • Web traffic monitoring
  • File transfer inspection
  • Cloud app monitoring

Endpoint DLP

  • USB/removable media control
  • Clipboard monitoring
  • Screen capture prevention
  • Application control

Cloud DLP

  • SaaS application monitoring
  • Cloud storage scanning
  • API-based protection
  • CASB integration

Detection Methods

  • Pattern matching (SSN, credit cards)
  • Keyword detection
  • Machine learning classification
  • Exact data matching
  • Document fingerprinting

Common Use Cases

  • Preventing PII/PHI exfiltration
  • Intellectual property protection
  • Compliance enforcement
  • Insider threat detection
  • Accidental data exposure prevention