ESTsecurity
Track on RadarSouth Korean antivirus software provider offering free endpoint protection via ALYac.
- Total raised
- $11.73M
- Employees
- 71
- Founded
- 2017
- Momentum
- 15
Stalling
Data updated August 2026
About
About ESTsecurity
At a glance
ESTsecurity is a cybersecurity company specializing in Endpoint Security, founded in 2017 and headquartered in Seoul, South Korea. It has raised $11.73M in total funding, employs about 71 people, and is privately held.
ESTsecurity is a South Korean cybersecurity company that develops and distributes endpoint security software. The company is best known for ALYac (알약), an antivirus and anti-malware product that has accumulated over 12 million users in South Korea, positioning it as one of the most widely adopted consumer security tools in the country. ALYac is designed to protect personal computers from a range of threats, including: - Ransomware: detects and blocks file encryption attempts before they can affect user documents and data - Cryptojacking: identifies unauthorized use of a PC's resources for cryptocurrency mining - Malvertising: detects malicious code embedded in online advertisements - Pharming: protects against fraudulent websites designed to steal personal information The product operates with a dual-engine detection architecture and draws from an extensive malware database to identify and neutralize threats. Core features include: - Real-time monitoring of PC activity during browsing and software installation - Quick scan for immediately harmful or frequently encountered malware - Deep scan for dormant or hidden threats within the system - Ransomware blocking to prevent file encryption attacks - PC optimization to clear unnecessary files and registry entries - Automatic updates to maintain current threat definitions - Game mode to minimize interruptions during gaming sessions ALYac 3.0 represents the latest version of the product. ESTsecurity distributes ALYac as a free download for individual consumers. The company operates primarily within the South Korean market and its website and product interface are presented in Korean.
Momentum
How ESTsecurity is trending
Momentum score
Score history appears once we have at least two monthly snapshots.
Pillar breakdown
Pillar breakdown locked
Growth, Market & Financial sub-scores
Valuation
What ESTsecurity is worth
Estimated valuation
Products
ESTsecurity's products
Funding
Funding history
See every round, lead investor, and the full capital stack.
Open the full profile on Mandos to see funding history.
Public markets
Stock performance
Privately held
This company isn't publicly traded. Stock performance will appear here after an IPO.
Headcount
Headcount growth
Track hiring velocity, department mix, and seniority shifts.
Open the full profile on Mandos to see headcount growth.
Jobs
Open jobs
Every live posting, hiring pace, and role-level signal.
Open the full profile on Mandos to see open jobs.
Web traffic
Digital presence
Visits trend, bounce rate, engagement, and top countries.
Open the full profile on Mandos to see digital presence.
Tech stack
Technologies
The full stack behind the product — frameworks, clouds, security.
Open the full profile on Mandos to see technologies.
M&A
Acquisitions
Every acquisition this company has made, with dates and amounts.
Open the full profile on Mandos to see acquisitions.
Reviews & sentiment
Employee & product reviews
CEO approval, culture, comp, and detailed product ratings.
Open the full profile on Mandos to see employee & product reviews.
Leadership
Full leadership team
CEO, CxOs, VPs, and every exec with roles.
Open the full profile on Mandos to see full leadership team.
Competitors
Competitive landscape
The complete competitor set with overlap and positioning.
Open the full profile on Mandos to see competitive landscape.
News
Press & news coverage
The most recent mentions, announcements, and media coverage.
Open the full profile on Mandos to see press & news coverage.
Full profile
This public profile is a snapshot
The full Mandos profile of ESTsecurityadds funding rounds & investors, valuation estimates, headcount & hiring trends, technology stack, executive moves, and real-time monitoring.
FAQ
Frequently asked questions about ESTsecurity
When was ESTsecurity founded?▾
ESTsecurity was founded in 2017.
Where is ESTsecurity headquartered?▾
ESTsecurity is headquartered in Seoul, South Korea.
How much funding has ESTsecurity raised?▾
ESTsecurity has raised a total of $11.73M in total funding.
Is ESTsecurity public or private?▾
ESTsecurity is a privately-held company.
How many employees does ESTsecurity have?▾
ESTsecurity has approximately 71 employees.