Which Detection Method? — TechKnowSurge

About this interactive

The Data Loss Detection lesson starts from the fact that protection can fail: an attacker gets in, or someone inside does something they should not with the data. So sensitive data is monitored, to notice when it ends up in the wrong place or goes to the wrong destination. Watermarking tags a document, either with a visible mark such as a large TOP SECRET behind the text or with an electronic tag. If a printout is left on a printer or found somewhere it should not be, the mark shows what it is and starts the questions: who printed it, and why was it left out? Digital rights management manages access to digital resources: software, music, videos, documents. Monitoring and controlling who opens them is DRM. Network traffic analysis watches what goes in, out and through the network. Deep packet inspection reads the content of the traffic, and traffic decryption opens up encrypted traffic so it can be read. Data loss prevention systems include detection as one of their parts. A quick test for each card: is the evidence a mark on the document, a record of who opened a file, or something seen on the network?

What you'll learn

Choose the data loss detection method that would catch a described exposure: watermarking, digital rights management or network traffic analysis
Recognize that watermarks trace where a document came from, digital rights management controls and records access to a digital file, and traffic analysis watches what crosses the network

Aligned to

CompTIA Security+

4.4 Explain security alerting and monitoring concepts and tools.

NIST 800-53

AU-13 Monitoring for Information Disclosure

NIST NICE

K0708 Knowledge of digital rights management (DRM) tools and techniques

Key terms

Watermarking: A data loss detection technique that embeds a visible or electronic tag into a document or file to identify and track its distribution and detect unauthorized exposure.
Digital Rights Management: A system of technologies and processes used to monitor and control access to digital content, helping detect and prevent unauthorized use or distribution.
Network Traffic Analysis: The process of inspecting and analyzing data flowing across a network to identify anomalies, unauthorized transfers, or potential data loss events.
Deep Packet Inspection: Deep Packet Inspection is a network traffic analysis technique that examines packet payloads beyond the header layer, enabling content-aware filtering, intrusion detection, and application identification.
Data Loss Prevention: A set of tools and processes designed to detect and prevent unauthorized access, use, or transmission of sensitive data.
Data Exfiltration: The unauthorized transfer of data from a system to an external destination.

Topics

Data Loss Prevention Detection Interactive Categorize

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