Sensenstone (CEO Changhoon Yoo), a company specializing in authentication security, has successfully attracted 6 billion won in investment amid the investment fever, proving its technological prowess and growth potential.


Sensestone recently announced that it had attracted a total of 6 billion won in investment from investors including KDB Industrial Bank, ES Investor, and Daedeok Asset Management.

This investment is a result of the high recognition of Senstone’s unique OTAC (One-Time Authentication Code) technology and its potential in the rapidly growing Operational Technology (OT) security market.

As the startup investment market has recently been shrinking, Sensenstone’s recent investment attraction is all the more meaningful.

In particular, KDB Industrial Bank's second investment is a strong signal showing that it is confident in Senstone's technological prowess and growth potential.

This reflects the market's high expectations for Senstone's achievements as it leads the certification advancement market in the OT field and continues to actively collaborate with global OT companies and manufacturers of programmable logic controllers (PLCs) in automated processes.

It is also significant that in this investment process, the peer group that is the investment comparison target of Senstone was set as a global security company rather than a domestic security company. This shows that the investment industry has no disagreement about Senstone being a promising company with sufficient competitiveness in the global market.

Based on this valuation, KDB Industrial Bank invested a total of KRW 10 billion in Sensestone by completing the investment of KRW 5 billion this time, following the first investment of KRW 5 billion in 2022. ES Investor and Daedeok Asset Management also participated as co-investors in this investment round. After completing this investment, Sensestone has opened up some strategic investment (SI) opportunities as well as venture capital in the same round.

OTAC (One-Time Authentication Code), the world's first one-way dynamic authentication technology developed by Senstone, has already achieved remarkable results in various fields at home and abroad.

Following the successful application of authentication security to Toss Bank, Kakao Bank, Hana Card, etc., we have secured a stable revenue stream beyond the market potential by securing the opportunity to supply technology to domestic financial institutions and financial companies for authentication methods that can block 70% of non-face-to-face financial fraud attacks worth more than KRW 500 billion annually.

The pace of progress in overseas markets is also accelerating. OTAC technology has already been successfully applied to the electronic revenue stamp service of the Indonesian Mint and Security Printing Corporation, and is leading the market for advanced OT/PLC system security through collaboration with global PLC manufacturers. Including LS Electric, a leading domestic PLC manufacturer, the company has successfully completed proof of concept (PoC) and minimum viable product (MVP) development with two of the top five global PLC manufacturers, and is currently working with one company to commercialize PLC devices with OTAC technology built into the production process. This is a result that demonstrates Senstone’s overwhelming technological prowess in the PLC certification market, which is estimated to be worth approximately KRW 364 billion.

In particular, SensenStone's PLC certification technology has already been registered and verified in the marketplace of Phoenix Contact, one of the German PLC manufacturers. SensenStone recently expanded into areas with similar issues to PLCs, such as remote terminal units (RTUs), distributed control systems (DCS), supervisory control and data acquisition (SCADA), and human-machine interfaces (HMIs), thereby taking the lead in the OT security market. In fact, the market response has been enthusiastic, with overseas government agencies that have felt the need to enhance OT security directly inquiring about it.

Through this investment, Senstone plans to further accelerate its advance into the global OT security market by advancing its OTAC technology. In particular, as the OT/PLC market grows and interest in the security of industrial facilities increases, Senstone’s OTAC technology is expected to receive even greater attention in the global market.

CEO Yoo Chang-hoon of SensenStone stated, “This investment is another recognition of SensenStone’s technological prowess and growth potential as a South Korean security company taking a different path from the past, and will serve as a stepping stone for us to become a leading company in the global OT security market.” He added, “We will continue to lead the global market by ensuring that our OTAC technology secures an irreplaceable position in various industrial fields through continuous technological research and business development.”