SecuLetter is an email security technology company and is a member company of the Born2Global Centre.

SecuLetter's security technology uses reverse engineering diagnostics to detect, analyze and block malicious code that seeks to enter in a non-executable file.

SecuLetter was founded in 2015 and is based in Seongnam, Gyeonggi, South Korea.


SecuLetter is able to detect unknown attacks with hybrid approaches, static and dynamic analysis even though cyber criminals recently hide malicious links and attachments to bypass existing email security systems.


SecuLetter has been improving their own analyzing technology which is unequalled so far, to respond to evolving email threats and blocking zero-day attacks.


SecuLetter is backed by Korea Investment Partners, Riyadh Valley Company (RVC), Korea Development Bank (KDB Bank) and Woori Bank. The company completed its Series B round of $6M in funding on Nov 14, 2019. This brings SecuLetter's total funding to $6.8M to date.


SecuLetter's security solutions have received 2018 Excellent Information Protection Technology and Product Selection from Ministry of Science and ICT and Korea Internet & Security Agency as well as GS certification and CC certification.



  • Year founded: 2015
  • Funding Info: $6.8M over 2 Rounds (Latest Funding Type: Series B)
  • Yearly Revenue: NA
  • Employee Size: 11-50
  • Business Valuation: NA
  • City/Town: Seongnam
  • State: Gyeonggi
  • Country: South Korea
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