INCA Internet

INCA Internet Corporation

Vendor

INCA Internet is a Seoul security company best known for something most antivirus makers do not do: protecting online games. Its nProtect GameGuard is one of the most widely deployed anti-cheat and game-security products in Asia, and for many users the nProtect name arrived not by choice but bundled with a game or a bank's website — Korean online banking long required a browser security module, and INCA supplied one. Its two brands divide the business. nProtect covers online, mobile and game security: nProtect Online Security, nProtect GameGuard, nProtect AppGuard, the nProtect KeyCrypt keyboard-security products, nProtect Mobile AV and nProtect FakeOut. TACHYON is the malware line: TACHYON Endpoint Security, TACHYON Internet Security, TACHYON Total Security and TACHYON Linux Security, with patch management, media control and DLP around them. It holds Common Criteria, GS, KCMVP and VB100 certifications. Its market is overwhelmingly Korean, and its products appear in the international public test cycles only occasionally.

Country: South Korea
Headquarters: Seoul, South Korea
Year Established: 2000
Employees: 250Estimated by LLM
Customers: 600 organisations (2026)Vendor states: Vendor website
Users: 10M users (2026)Vendor states: INCA Internet
Revenue: ≈ $11.4M (2009)₩15.6B as published · converted at an approximate rateSource: Wikipedia
Website: https://www.inca.co.kr/
Status: Active

Support locations

Support in 1 country

Headquarters · Seoul, South Korea Support location Country with support

Asia1 country: South Korea · Seoul

Where the vendor offers local support — a support centre, an office it lists, or a local support line (shown as the country alone) — from the vendor’s own site. Partners and resellers are not counted.

Products

Product	Category	Market	Platform & Version	Free / Paid
nProtect Online Security	Home Antimalware	Consumer	Windows	Paid
TACHYON Endpoint Security	Enterprise Antimalware	Enterprise	Windows:6.0	Paid
TACHYON Internet Security	Home Antimalware	Consumer	Windows:6.0.4.14	Paid
TACHYON Linux Security	Enterprise Antimalware	Enterprise	Linux:6.0	Paid

Certifications

OESIS Framework Support

SupportedTACHYON Endpoint Security
SupportedTACHYON Internet Security

OPSWAT Certified Security Application

PlatinumTACHYON Endpoint Security

Recent test results

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Recent changes

2026-10-28Central Management Console: built in TACHYON Linux Security
2026-10-28Vulnerability Shielding: built in TACHYON Linux Security
2026-10-28Malware Detection: built in TACHYON Linux Security
2026-10-18Support location: Seoul, KR
2026-10-17Employees: 250
2026-10-17Customers: 600 organisations (2026, from the vendor's website)
2026-10-10Users: 10M users (2026, from INCA Internet)
2026-10-09Users: 10M users (2026, from INCA Internet)
2026-09-29Revenue: KRW 15.643B (2009, from Wikipedia)
2026-09-23Headquarters: Seoul, South Korea
2026-09-23Vulnerability Shielding: built in TACHYON Endpoint Security
2026-09-23Central Management Console: built in TACHYON Endpoint Security
2026-09-23Device Control: built in TACHYON Endpoint Security
2026-09-23Host Firewall: built in TACHYON Endpoint Security
2026-09-23Ransomware Protection: built in TACHYON Endpoint Security

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