# swIDch PLC OTAC

swIDch PLC OTAC is an Industrial Control System Security product by swIDch. It runs in the cloud or on-premises (hybrid). Pricing is commercial (contact sales).

MFA solution for OT devices using dynamic one-time authentication codes

Checked October 2026.

## What is swIDch PLC OTAC?

swIDch PLC OTAC is an authentication solution for operational technology devices including programmable logic controllers (PLCs), remote terminal units (RTUs), SCADA systems, and human-machine interfaces (HMIs). The product replaces static password-based authentication with dynamic one-time authentication codes (OTAC) that generate unique codes for each access attempt.

The solution addresses password-related vulnerabilities in OT environments such as password sharing, repeated password exposure, and compromised credentials. It maintains compatibility with existing 8-digit password setups while eliminating the need for manual password management, password changes, and password sharing between users.

PLC OTAC provides compliance support for regulatory frameworks including IEC 62443, NIS2, and CRA through its authentication mechanism. The system offers audit trail capabilities and access control management per user and device. It supports tiered access management by device using dynamic codes.

The product is available in multiple deployment models based on OT network levels: Server Model for Level 3-4 operations, Hybrid Model combining server and module components for Level 2 supervisory networks, and Standalone Module for Level 1 control networks. Each model can be configured to work with existing infrastructure with minimal system changes.

Tags: SCADA, Password Management

## Where it fits in your security program (NIST CSF 2.0)

- [Protect](https://cybersectools.com/guides/building-protect-program-small-team): helps you prevent attacks and keep data safe.

## Quick facts

- Category: [Cyber-Physical Security](https://cybersectools.com/categories/ot-security) · [Industrial Control System Security](https://cybersectools.com/categories/ics-security)
- Vendor: [swIDch](https://cybersectools.com/companies/swidch)
- Deployment: Hybrid
- Company size fit: Mid-Market, Enterprise
- Pricing model: Commercial (contact sales)
- Features: 10 listed
- Website: swidch.com

The full feature and integration lists are on the page for signed-in visitors.

## Where it ranks

No shortlist covers this product's category yet. The closest is [Best OT Security Solutions for Business](https://cybersectools.com/shortlists/best-ot-security-solutions).

## swIDch PLC OTAC FAQ

### What is swIDch PLC OTAC?

swIDch PLC OTAC is a product by swIDch in the Industrial Control System Security category. It covers SCADA and Password Management.

### What is the pricing for swIDch PLC OTAC?

swIDch PLC OTAC is a commercial product. For pricing, visit https://www.swidch.com/hubfs/PLC_OTAC_Brochure_web.pdf?hsLang=en or contact swIDch.

### What are alternatives to swIDch PLC OTAC?

Alternatives to swIDch PLC OTAC listed on CybersecTools:

1. [OTOPIQ Platform](https://cybersectools.com/tools/otopiq-platform) - AI-driven OT security platform for PLCs, RTUs, HMIs, and workstations (Commercial)
2. [Blue Ridge Networks LinkGuard & CyberCloak](https://cybersectools.com/tools/blue-ridge-networks-linkguard-and-cybercloak) - ICS/SCADA security solution with Zero Trust segmentation for OT environments. (Commercial)
3. [ProSoft Secure Remote Connectivity](https://cybersectools.com/tools/prosoft-secure-remote-connectivity) - Industrial secure remote access platform for OT equipment monitoring. (Commercial)
4. [Xona](https://cybersectools.com/tools/xona) - Zero Trust secure remote access platform for OT/ICS environments. (Commercial)
5. [Vantelis Water](https://cybersectools.com/tools/vantelis-water) - Agentless OT cybersecurity for water/wastewater SCADA and PLC systems. (Commercial)

Compare all swIDch PLC OTAC alternatives at [https://cybersectools.com/alternatives/swidch-plc-otac](https://cybersectools.com/alternatives/swidch-plc-otac)

### What deployment and organization size does swIDch PLC OTAC fit?

swIDch PLC OTAC is available as cloud or on-premises (hybrid). It is listed for mid-market companies and enterprises. Pricing is commercial. Ask swIDch for pricing and support terms.

## Compare swIDch PLC OTAC with similar solutions

- [swIDch PLC OTAC vs OTOPIQ Platform](https://cybersectools.com/compare/otopiq-platform-vs-swidch-plc-otac)
- [swIDch PLC OTAC vs Blue Ridge Networks LinkGuard & CyberCloak](https://cybersectools.com/compare/blue-ridge-networks-linkguard-and-cybercloak-vs-swidch-plc-otac)
- [swIDch PLC OTAC vs ProSoft Secure Remote Connectivity](https://cybersectools.com/compare/prosoft-secure-remote-connectivity-vs-swidch-plc-otac)

All alternatives to swIDch PLC OTAC: [/alternatives/swidch-plc-otac](https://cybersectools.com/alternatives/swidch-plc-otac)

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Source: https://cybersectools.com/tools/swidch-plc-otac

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More on swIDch PLC OTAC and swIDch: funding, momentum, hiring and news, plus the full product and company record, are available through the Mandos MCP Server (paid plans), which connects to AI assistants: https://mandos.io/mcp?utm_source=cybersectools.com&utm_medium=product-md