Learn what syslog is, why it’s key for cybersecurity, how it works, and how to set it up for smarter monitoring and incident response.
What Is Telemetry in Cybersecurity?
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FAQs
"Logs" are atype of telemetry, but "telemetry" is a broader, more modern term. "Logs" often implies static, text-based files (like an event log). "Telemetry" includes those logs but also richer, real-time data streams, like network flows, process events, API calls, and other dynamic data that isn't always captured in a simple log file.
Not always. More data isn't useful if you can't analyze it. Having "more" data can actually make itharder to find threats by increasing the noise. The goal is to collect the right telemetry—high-fidelity data from critical sources—and have a powerful system (or human team) to analyze it effectively.
This is data collected specifically from endpoints (laptops, servers). It’s one of the most valuable types of telemetry for threat hunting because it shows you exactly what happened on a device. It includes things like: which user ran what program, what files that program touched, and what network connections it opened.
You can't investigate a breach without evidence.Telemetry is the evidence. When a breach happens, incident responders use telemetry data (logs, network traffic) to "rewind the tape." It's how they answer critical questions like: How did the attacker get in? What did they steal? And are they still here?
Three main reasons:
Volume: The sheer amount of data is massive, making it expensive to store and slow to search.
Speed: It's generated 24/7 in real-time, and you have to analyze it just as fast.
Noise: 99.999% of telemetry is normal, benign activity. Finding the tiny signal of an attack in that massive haystack is incredibly difficult.
Additional Resources
- Read more about What's Syslog? A simple explanation for cybersecurity
- Read more about Initial Access in Cybersecurity: The Attack Stage Most Businesses MissEvery cyberattack starts somewhere. Learn how threat actors gain initial access to your systems, the techniques they use, and what your team can do to detect and block them early.
- Read more about What are log files? Log File Explained for CybersecurityLearn what a log file is, why it matters for cybersecurity, and how to manage logs for compliance and threat detection.
- Read more about What Is a Script Kiddie?Find out what script kiddies are, how they operate, and why they're a hassle in the cybersecurity world.
- Read more about ObservabilityDiscover what observability is, how it differs from monitoring, and why it’s a game-changer for modern cybersecurity teams.
- Read more about Managed Detection and Response (MDR) ExplainedWhat is Managed Detection and Response (MDR)? It's 24/7 cybersecurity that combines technology & human expertise for threat hunting & rapid response. Learn more here!
- Read more about What Is Data Onboarding? How It Works & Why It MattersWhat is data onboarding? Learn how organizations collect, normalize, and enrich security data in SIEM systems to improve threat detection and incident response.
- Read more about What is Sandboxing? Protect From Malicious CodeSandboxing is a technique that cybersecurity experts use to isolate code execution in a controlled environment to prevent a bigger impact of malicious code.
- Read more about Built-in Tools in CybersecurityLearn what built-in tools are and how to leverage pre-installed security utilities for effective threat detection and system protection.
