Tips: Deepseek explains the differences between Event, Incident, and Accident.Supplementing the previous content, the answer from Deepseek is as follows:By incorporating Logs into the framework of Event/Incident/Accident in cybersecurity SOC operations, a more complete analysis chain can be constructed. Below is a precise interpretation of the relationships among the four concepts, along with an understanding from the SOC perspective:
1. Core Concepts: Chinese Interpretation and Positioning
2. Logical Relationships Among the Four in SOC Operations
3. In-Depth Analysis from the Cybersecurity SOC Perspective
(1) Logs: The “Raw Material” for Security Analysis
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What is it? Raw records generated by systems, devices, and applications (e.g., system logs, network traffic, audit records). Example:
SOC Perspective:
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Data Source: Logs collected by SIEM/SOAR systems are normalized (Parsing & Normalization).
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Challenges:
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Massive volume (TB level daily), heterogeneous formats (Syslog/JSON/CSV), containing a lot of useless information.
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Need to establish a Log Governance Strategy (retention period, sensitive field anonymization).
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Key Actions:
(2) Event: The “Semantic” Result of Logs
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What is it? An activity unit with business significance formed by parsing a single log (e.g., “User login failed”, “Firewall denied connection”).
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SOC Perspective:
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Events are the smallest unit of SIEM correlation analysis (e.g., correlating 10 “login failed” events from the same IP within 5 minutes).
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Analysis Basis:
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Classification Examples:
(3) Incident: Threats Requiring Response
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What is it? A scenario composed of multiple correlated events that poses an actual or potential threat to CIA (Confidentiality/Integrity/Availability).
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SOC Key Processes:
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Automation: Blocking IP and isolating hosts through SOAR.
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Manual: Investigating attack paths and preserving evidence.
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Rule Example:
<span>Same IP triggers >50 "WAF SQLi block events" within 2 minutes → generates SQL injection security incident.</span> -
Detection Phase:
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Response Actions:
(4) Accident: Non-Malicious Business Interruptions
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What is it? Business losses caused by non-malicious reasons such as human error or equipment failure (e.g., accidentally deleting a database, power outage in the data center).
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SOC Collaboration Points:
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Distinguishing Intent:
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Operations personnel mistakenly opened a firewall port (Accident) → exploited by hackers (transformed into an Incident).
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Server hardware failure leading to data loss (Accident) → triggers a “data availability security incident” (Incident).
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Typical Scenarios:
4. Collaborative SOC Practical Scenarios Among the Four
Case Study: Ransomware Incident Chain
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Log Layer: Firewall records
<span>Outbound connection to 45.76.XXX.XXX on port 443</span>. -
Event Layer:
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SIEM generates event:
<span>[Suspicious Outbound] IP=10.0.0.12, Port=443</span>. -
EDR generates event:
<span>[File Encryption] Process=malware.exe, Files=200+</span>. -
Incident Layer:
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The correlation engine binds the two → creates a ransomware security incident (Severity: Critical).
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SOAR automatically isolates the host and blocks the C2 server IP.
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Accident Layer:
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Business system crashes due to file encryption (business accident).
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Root cause analysis: Operations did not patch the Apache vulnerability (operations accident).
5. Summary: Key Insights for SOC Operations
Golden Rule: Log → Event → Incident is the “Detection Pipeline” of SOC, aiming to reduce MTTD (Mean Time to Detect) and MTTR (Mean Time to Respond); Accident is the “Intersection of Security and Business”, which needs to break the vicious cycle of Accident → Vulnerability → Security Incident through Root Cause Analysis (RCA).For more details on Kaspersky SOC operation solutions, please contact:Lu Wenjie – 156 6269 0813Gao Jin – 186 6376 106