---
title: OTAC PLC Solution - PoC of PLC user
description: OTAC PLC Solution - PoC of PLC user
image: https://blog.ssenstone.com/hubfs/%EC%9C%A0%ED%8A%9C%EB%B8%8C%20%EC%8D%B8%EB%84%A4%EC%9D%BC_PLC%20PoC(ENG).jpg
---

[Back to Home

](https://blog.ssenstone.com/en/video)

[ OTAC ](https://blog.ssenstone.com/en/video/tag/otac) [ M2M ](https://blog.ssenstone.com/en/video/tag/m2m) [ IAM ](https://blog.ssenstone.com/en/video/tag/iam) [ Video ](https://blog.ssenstone.com/en/video/tag/video) [ PLC ](https://blog.ssenstone.com/en/video/tag/plc) [ OT ](https://blog.ssenstone.com/en/video/tag/ot)

# OTAC PLC Solution - PoC of PLC user

[![Picture of SSenStone](https://blog.ssenstone.com/hubfs/SSenStone_November2021/images/emblem.svg)  SSenStone ](https://blog.ssenstone.com/en/video/author/ssenstone)

[Share this blog post on Twitter ](https://twitter.com/intent/tweet?text=I+found+this+interesting+blog+post&url=https://blog.ssenstone.com/en/video/08) [Share this blog post on Facebook ](http://www.facebook.com/share.php?u=https://blog.ssenstone.com/en/video/08) [Share this blog post on LinkedIn ](http://www.linkedin.com/shareArticle?mini=true&url=https://blog.ssenstone.com/en/video/08)

# OTAC Solutions | PoC of PLC user

SSenStone’s Programmable Logic Controller OTAC provides a highly optimised and highly secure authentication solution specifically for PLC devices. It utilises our dynamic 'one-time authentication code' (OTAC) technology to resolve typical ICS/OT security challenges. 

![PLC PoC with LS ELECTRIC](https://blog.ssenstone.com/hs-fs/hubfs/PLC%20PoC%20with%20LS%20ELECTRIC.jpg?width=3508&height=1639&name=PLC%20PoC%20with%20LS%20ELECTRIC.jpg)

OTAC ensures only known and authorised users/devices can access PLC using dynamic, non-reusable, constantly changing code guaranteed with 0% duplicates (defeats packet sniffing attacks)

 •  Password sharing in password-only authentication systems  
 •  Difficulty managing ID/PW specified for each PLC device  
 •  Difficulty managing user changes (leavers / contractors etc)  
 •  Hacking attempts using password cracking software

[SSenStone | PoC of PLC](https://youtu.be/DZgRb0G8cZQ)

 

 

 

### Comments

## Related Posts

[Read more

](https://blog.ssenstone.com/en/video/otacplc)

[OTAC](https://blog.ssenstone.com/en/video/tag/otac) [Video](https://blog.ssenstone.com/en/video/tag/video)

## [Join PLC-OTAC, an innovation in PLC security!](https://blog.ssenstone.com/en/video/otacplc)

# SSenStone | Join PLC-OTAC, an innovation in PLC security!

Join PLC-OTAC, an innovation in PLC security!...

[![Picture of SSenStone](https://blog.ssenstone.com/hubfs/SSenStone_November2021/images/emblem.svg)  SSenStone ](https://blog.ssenstone.com/en/video/author/ssenstone)  Mar 27, 2024 11:19:12 AM

[Read more

](https://blog.ssenstone.com/en/video/otac_auth_mfa)

[OTAC](https://blog.ssenstone.com/en/video/tag/otac) [Video](https://blog.ssenstone.com/en/video/tag/video)

## [[Tutorial] PLCnext Store - OTAC auth MFA](https://blog.ssenstone.com/en/video/otac_auth_mfa)

# SSenStone | Join PLC-OTAC, an innovation in PLC security!

SSenStone offers a modular user authentication...

[![Picture of SSenStone](https://blog.ssenstone.com/hubfs/SSenStone_November2021/images/emblem.svg)  SSenStone ](https://blog.ssenstone.com/en/video/author/ssenstone)  Aug 19, 2024 3:28:20 PM

```json
{
 "@context": "http://schema.org",
 "@type": "Person",
 "name": "센스톤", "ssenstone"
 "url": "http://www.ssenstone.com",
 "sameAs": [
   "https://www.facebook.com/ssenstone",
   "https://blog.naver.com/ssen_stone",
   "https://www.youtube.com/channel/UCHIR31J0VTuogasYbu5Nwrg",
   "https://www.linkedin.com/company/ssenstone"
 ]
}

<div id="fb-root"></div>
  <script>(function(d, s, id) {
  var js, fjs = d.getElementsByTagName(s)[0];
  if (d.getElementById(id)) return;
  js = d.createElement(s); js.id = id;
  js.src = "//connect.facebook.net/en_GB/sdk.js#xfbml=1&version=v3.0";
  fjs.parentNode.insertBefore(js, fjs);
 }(document, 'script', 'facebook-jssdk'));
```