GreatHorn Appoints New Chief Revenue Officer to Spearhead Scalable Business Growth Acceleration

Accomplished industry veteran Arthur Braunstein joins GreatHorn’s leadership team to focus on direct and channel sales momentum

Waltham, MA, Tuesday, August 5, 2021

WHO: API-based cloud-native email security solution, GreatHorn

WHAT: GreatHorn announced the appointment of new Chief Revenue Officer, Arthur Braunstein, who will oversee all revenue-generating activities and lead the scalable growth of the company’s business in both direct and channel sales engines. WIth this new addition, GreatHorn’s leadership team boasts over 100 years of collective industry experience. Braunstein joins GreatHorn from Morphisec, where he held the position of Vice President, US Sales for five years. He has more than 25 years of executive management and sales leadership experience, including over 10 years in the data and cybersecurity industry.

Before joining Morphisec, he was Vice President at Big Belly, leading their industry sector expansion. Prior to Big Belly, he served as VP Strategic Accounts at CloudLock, a cloud cybersecurity company, where he focused on large enterprise customers. Prior to that, Arthur built the major accounts strategy and portfolio for Verdasys (now known as Digital Guardian). Previously, he held executive level roles at Escort Inc., ArchiText, Polaroid and AT&T. Arthur has also held a prominent position on GreatHorn’s Advisory Board since 2016.

About GreatHorn

GreatHorn safeguards cloud email from advanced threats like impersonations, credential theft, malware, and social engineering attacks by protecting organizations before, during, and after an email attack. Through its proactive threat detection engine, end-user education, and robust remediation capabilities, GreatHorn frees security teams from time-consuming email security management to enable them to respond to genuine threats faster. More information is available at

Get Your FREE Email Threat Assessment

Learn what advanced threats are currently getting through your existing email security and into your end users’ mailboxes.