The IoT/OT Security Gap
Most cybersecurity tools were designed for IT environments — web servers, databases, user workstations. They understand HTTP, DNS, TLS. But an industrial control system speaks Modbus, DNP3, BACnet, and MQTT. A traditional firewall looks at that traffic and shrugs.
This gap is exactly what attackers exploit. Nation-state groups target industrial control systems specifically because surveillance tools don't understand the protocols. They can send malicious Modbus commands to a PLC, and the network monitoring sees nothing unusual — just a normal TCP connection.
Device Fingerprinting and Protocol Monitoring
1-SEC's IoT & OT Shield provides what traditional security tools can't: protocol-aware monitoring for industrial and IoT environments.
Device fingerprinting identifies every device on the network by its communication patterns, not just its MAC address. Smart thermostats, IP cameras, PLCs, and SCADA controllers all have distinctive traffic signatures that the module learns and monitors.
Protocol anomaly detection watches for commands that deviate from normal operations. A Modbus write to a register that's normally read-only? That's a potential attack. An MQTT topic that suddenly appears with firmware update payloads? That needs investigation.
Default Credential Detection
An embarrassing number of IoT devices still ship with default passwords. 1-SEC scans for authentication attempts using known default credentials and flags devices that haven't been hardened. It costs nothing to change a default password, but it's the attack vector that keeps on giving.
Firmware Integrity
Firmware updates are a critical attack vector. Modified firmware can persist through reboots and survive factory resets. The IoT Shield verifies firmware integrity against known-good baselines and alerts on unexpected changes to device software.
IT/OT Convergence Risk
As industrial networks connect to corporate IT infrastructure for remote monitoring and cloud analytics, the attack surface expands dramatically. A compromised IT workstation becomes a pivot point into OT networks. 1-SEC monitors these convergence points specifically — watching for IT-originated traffic entering OT segments and flagging lateral movement attempts that cross the IT/OT boundary.