Sensenstone (CEO Changhoon Yoo), a domestic certified security specialist, has been recognized for its security innovation in the field of PLC (Programmable Logic Controller) security.


SensenStone's global headquarters swIDch (located in London, UK) won the 'Global InfoSec Awards' at the RSA Conference 2025 (RSAC 2025) held in San Francisco, USA.

Senstone has been selected as a Hot Company in PLC Security in the field of Programmable Logic Controller (PLC) security, and has been recognized for its innovation and leadership in the global market.

The Global InfoSec Awards is a prestigious awards ceremony that recognizes innovative technologies and market-leading companies in the cybersecurity field.

Now in its 13th year, the awards are presented by a panel of Certified Information Systems Security Professionals (CISSPs), experts from the U.S. Department of Homeland Security (FMDHS), and Certified Ethical Hackers (CEH) experts, who evaluate innovation and security threat response capabilities to select winners.

SenseTone's OT certified security solutions, 'PLC OTAC' and 'OTAC Trusted Access Gateway (TAG)', are unidirectional networkIt is based on OTAC (One-Time Authentication Code) technology that generates a one-time dynamic authentication code in a work communication environment.

This technology fundamentally blocks authentication vulnerabilities in PLC devices while utilizing existing infrastructure, and has been highly evaluated for its ability to block unauthorized access at the source without the need for certificates or complex password management.

SenseTone is expanding the PLC authentication security market in cooperation with global PLC manufacturers, and recently introduced OTAC Trusted Access Gateway (TAG), which can enhance the endpoint authentication security system in OT infrastructure environments without manufacturer support.

The technology is known to have reached the stage of practical industrial deployment after undergoing field tests with various organizations and companies.

Gary S. Miliefsky, chairman of the Global Infosec Awards jury, emphasized the significance of this award, saying, “SensTone has demonstrated innovation in proactively recognizing future security threats, providing cost-effective solutions, and responding to threats in new ways.”

“With this award, we have laid the foundation for actively advancing into the European OT security market in response to the strengthening of the NIS2 directive,” said Yoo Chang-hoon, CEO of Senstone. “We will strengthen the security of major industries such as energy, water resources, and manufacturing facilities through solutions that resolve endpoint authentication security issues, which account for more than 62% of OT attacks.”