09 Dec 2025

Latham Advises Financing for Proofpoint's Acquisition of Hornetsecurity

"Latham & Watkins LLP advised the financing sources supporting Proofpoint, Inc.'s completed acquisition of Hornetsecurity Group, a pan-European provider of AI-powered Microsoft 365 security, data protection, compliance, and security awareness solutions for MSPs and SMBs."

Latham & Watkins LLP represented the financing sources supporting Proofpoint, Inc.'s completed acquisition of Hornetsecurity Group. The transaction completed with Proofpoint, Inc., a leading cybersecurity and compliance company, acquiring Hornetsecurity Group, a pan-European provider of AI-powered Microsoft 365 (M365) security, data protection, compliance, and security awareness solutions for managed service providers (MSPs) and small to midsize businesses (SMBs). Latham & Watkins LLP represented the financing sources supporting the acquisition with a team composed by: New York partners Alfred Xue, Stelios Saffos, Jesse Sheff, Peter Sluka, Victor Ludwig, and Michael Waldman; London partners Fergus Wheeler, Paul Yin, and Manoj Bhundia; New York counsel Preeta Paragash; Los Angeles/Bay Area counsel Katherine Page; San Diego counsel Josh Chao; and associates Carlos Ibarguengoitia, Yoojin DeNiro, Philipp Hagenbuch, Daniel Ovadia, Ana Núñez Cárdenas, Chi-Emeka Egwuagu, Sharon Yin, William Council, Amber Morrow, Angela Lin, Amishi Magdani, Prasanth Ramaswamy, and Anastassia Simonian, with assistance from Casey Pepa. Latham & Watkins LLP represented the financing sources on employee benefits matters with a team composed by: Chicago partner Benjamin Rosemergy and associate Tayler Evan Daniels. Latham & Watkins LLP represented the financing sources on intellectual property and data privacy matters with a team composed by: Bay Area partner Michelle Gross and associates Kiara Vaughn, Karen Sung, and Claire Jensen. Latham & Watkins LLP represented the financing sources on tax matters with a team composed by: New York partner Bora Bozkurt and associate Sam Yang.
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