Sepio and Physical Layer Explained

The Physical Layer, of the OSI model (Open Systems Interconnection), serves as a foundational framework for comprehending and standardizing the interactions among various networking protocols and technologies within a network. Its primary role is to define the necessary hardware and physical attributes essential for transmitting raw data bits over a physical medium. Including cables, wireless signals, or optical fibers.

In essence, the Physical Layer bears the responsibility for initiating and sustaining the physical connections between devices. Guaranteeing the dependable and precise transmission of data bits over the selected physical medium. It acts as the underpinning upon which higher-level protocols construct their communication structures.

Sepio’s Physical Layer Security

Sepio’s patented technology offers a comprehensive means of overseeing and managing assets at the Physical Layer. Addressing the vital need to identify potential threats and effectively mitigate risks. Traditional cybersecurity solutions often fall short in providing this essential  Layer 1 visibility, leading to the neglect of hardware security. Consequently, the network remains susceptible to potential threats. Including network implants and the presence of rogue devices within the Physical Layer. Moreover, it adeptly distinguishes between counterfeit peripherals and genuine Human Interface Devices (HIDs).

The lack of visibility regarding assets poses a significant risk to enterprises, creating opportunities for rogue devices to infiltrate the network and execute damaging hardware-based attacks. Considering that Layer 1 serves as the foundational level in the OSI model, the establishment of robust security measures at this level becomes imperative. This proactive approach enables the prevention of attacks stemming from rogue devices right from their inception, establishing a critical line of defense for zero-trust hardware access.

Check out our new series of “HACademy” with Victoria and Justin! They discuss a pen testing that failed because the red team was able to get in through a spoofed network device. Learn how the true identity of a network device is verified by Sepio.

May 7th, 2022