ALYac Open OS

ALYac endpoint security for open-source desktop operating systems. ALYac Open OS covers Linux. It is aimed at Enterprise and Government buyers. ALYac Open OS is sold on a quoted basis rather than at a published price. It is ESTsecurity's entry in the enterprise antimalware category.

Current Version

—Not known

Product Page

estsecurity.com/…/alyac-openos

Market

EnterpriseGovernment

Licence

Paid

Price

Quote

Record Created

2026-09-19

Last Updated

2026-10-10

ESTsecurity makes ALYac, which is among the most widely installed consumer antivirus products in South Korea — the company describes it as the country's national vaccine, using the Korean idiom for antivirus software. It is based in Seocho-gu, Seoul, and is the security subsidiary of ESTsoft, which spun the security business out into its own company. The line carries the ALYac name throughout: ALYac for households, with ALYac Mac, ALYac Linux/Unix and ALYac Office editions, ALYac Enterprise for managed deployments and ALYac EDR for detection and response. ThreatInside is its threat-intelligence service, and its Security Response Center publishes research on campaigns aimed at Korean targets — including the state-sponsored groups that focus on the peninsula, which is a body of analysis few vendors outside Korea produce. Its market is almost entirely domestic. Expect fewer entries in the European public test cycles than for a globally sold product of comparable installed base. Vendor page →

Website

estsecurity.com

Country

🇰🇷South Korea

Headquarters

🇰🇷Seoul, South Korea

Year Established

2017

Customers

13K organisations

Users

16M users

Revenue

≈ $17.7M (2023)