Full Report
What do disco music, Star Wars and Saturday Night Live all have in common? The 1970s. A decade jam-packed with social and technological change, which also happened to bring us advancements in computing technology that would shape the way the […] The post From Physical to Application: Breaking Down The 7 Layers of The OSI Model appeared first on Lumen Blog.
Analysis Summary
# Main Topic
The evolution of computing connectivity standards, specifically detailing the Open Systems Interconnection (OSI) Model, which was developed to establish common standards for interconnectivity between disparate networks.
## Key Points
- The concept originated from the need to standardize communication among increasingly numerous and complex networks following 1970s technological advancements.
- The Open Systems Interconnection (OSI) Model was published in 1984 by members of the International Standardization Organization (ISO).
- The model breaks down network communication functions into seven distinct layers, each with a specific purpose, mapping data flow from physical media up to the application layer.
- Historically, early computers were large, slow, and nascent in terms of Wide Area Network (WAN) capabilities.
## Threat Actors
- **None Identified.** The context describes a foundational networking standard (OSI Model) and does not reference any specific threat actors, campaigns, or malicious activity.
## TTPs
- **None Identified.** The article focuses on the architectural framework of the OSI Model, not on offensive or defensive techniques related to cyber threats.
## Affected Systems
- **Networking Infrastructure:** Systems requiring standardized interconnectivity, addressing the limitations of early WANs.
- **Protocols/Standards:** The OSI communications framework itself.
## Mitigations
- **None Identified.** As the source material discusses a standardized conceptual model rather than a specific vulnerability or threat, no mitigation strategies are provided in the relevant excerpt.
## Conclusion
The provided text offers historical context on the necessity and creation of the 7-Layer OSI Model, a fundamental concept in networking established to ensure common standards for interconnectivity. While this serves as foundational knowledge for understanding network communications that malicious actors exploit, the excerpt itself does not contain actionable threat intelligence regarding actors, TTPs, IoCs, or specific defensive measures.