The round was led by ff Venture Capital and SoftTech VC, joined by Techstars Ventures, RRE, and Walter Winshall, alongside existing investors Zelkova Ventures and V1.VC.

Emerging from nearly a year of research and development, GreatHorn is the world's first truly cloud native communication security platform. Natively integrated into leading email platforms like Google Apps and Office 365, GreatHorn offers organizations a unique, fully automated platform for detecting advanced spear phishing attacks that email security gateways, cloud access security brokers, and traditional anti-spam/anti-virus tools miss.

GreatHorn will leverage this Series Seed funding to expand both existing and new product lines, grow its operations in the US, and further accelerate its sales and marketing reach across globally.

'We are excited by the unique, data-driven approach that the GreatHorn team has taken to solving the increasingly pervasive problems surrounding cybersecurity, especially for companies embracing cloud communication technologies. As we see all too often, legacy security tools simply cannot detect and respond to the ever-changing nature of highly targeted online attacks. GreatHorn offers a more comprehensive and sophisticated solution for those looking to strike a balance between security and productivity,' said John Frankel, Partner at ff Venture Capital.

'Our mission is to help companies defend against the increasingly sophisticated attacks that target them every day,' said Kevin O'Brien, CEO & Co-Founder of GreatHorn. 'We seek out partners who share our core belief that the cloud is changing how organizations and their people interact, and that security for that new world needs to be realtime, deeply integrated, and truly ambient in order to be effective. To that end, we're excited to be working with our new investors, who are helping GreatHorn become a foundational part of every security-conscious company in world.'

Since release in October of 2015 as part of the Techstars 2015 NYC program, the GreatHorn platform has experienced rapid growth, with over 10,000 email mailboxes protected from threat daily, and a unique data set that comprised more than 50,000,000 analyzed messages in the past quarter alone.

'DigitalOcean takes the security of our employees, infrastructure, and customers very seriously,' notes Nick Vigier, Director of Security. 'Cloud email services introduce a unique risk to our environment where analytics and visibility are paramount to mitigate one of our major attack surfaces. GreatHorn's cloud-based email analytics suite gives us the insights we need to identify and mitigate threats to our employees and enterprise, and are essential to our overall security approach.'

As the first and only truly cloud-native communication security platform, GreatHorn will continue to rapidly innovate, securing industry firsts, including its patent-pending homograph domain detection, impersonation and spoofing prevention, malicious content detection, and continuous message analytics and defense.

'The GreatHorn team has built a truly differentiated data set and approach to solving this problem, and it's one that is highly relevant in the wake of the major data breaches we've seen in the news over the past year. We believe in the GreatHorn team, their security backgrounds, technical innovation, and track record of operating experience,' noted Andy McLoughlin, Partner at SoftTech VC.

About GreatHorn
GreatHorn, the leading cybersecurity provider for cloud communication systems, offers the only completely automated spear phishing and credential theft protection system. Learn more at www.greathorn.com.