The Tool Desk
Outbyte Driver Updater FREEScan for outdated or missing drivers - takes under a minuteDriver Scan →Outbyte PC Repair FREEClear out junk files and repair common Windows errorsFree Scan →Proofpoint completed its acquisition of Hornetsecurity on December 8, 2025, for total consideration of $1.8 billion. The deal gives Proofpoint a dedicated business focused on managed service providers (MSPs) and small and midsize businesses (SMBs), with Microsoft 365 security at its center.
When did Proofpoint complete the Hornetsecurity acquisition?
Proofpoint announced a definitive agreement on May 15, 2025, and said the transaction was expected to close in the second half of that year, subject to customary conditions. It announced completion on December 8, 2025. The signing announcement said the terms were confidential; the completion announcement disclosed total consideration of $1.8 billion.
Proofpoint’s May 15, 2025 agreement announcement and its December 8, 2025 completion announcement are the company’s primary public accounts of the transaction.
How much did Proofpoint pay for Hornetsecurity?
Proofpoint reported total consideration of $1.8 billion when it announced the deal’s completion in 2025. The earlier agreement announcement did not disclose a price, describing the terms as confidential. The $1.8 billion figure is Proofpoint’s stated transaction consideration; the announcements do not provide an independent deal valuation or a breakdown of the consideration.
#1 Best Overall
Why did Proofpoint buy Hornetsecurity?
The companies presented the acquisition as a way for Proofpoint to expand its reach among SMBs through MSPs and strengthen its presence in Europe. Hornetsecurity brought a channel-oriented business built around Microsoft 365 security, data protection, compliance, backup and security awareness. The rationale was to extend Proofpoint’s reach and offerings; the announcements alone do not establish post-acquisition performance or integration results.
The two businesses approached customers through different strengths: Proofpoint had an established enterprise footprint, while Hornetsecurity focused on MSP and SMB customers. At completion, Proofpoint said it served more than 125,000 customers through over 12,000 MSPs and channel partners. Those figures were reported by Proofpoint in its 2025 completion announcement.
What did Proofpoint say Hornetsecurity was worth to its business?
Proofpoint reported different operating figures at signing and completion. They are company-reported snapshots from separate announcement dates, not figures established here as audited or directly comparable for identical measurement periods.
| Announcement | Hornetsecurity figures reported by Proofpoint |
|---|---|
| May 15, 2025, agreement announcement | Over $160 million in annual recurring revenue (ARR), more than 20% year-over-year growth, and performance above the Rule of 60. |
| December 8, 2025, completion announcement | Nearly $200 million in ARR and 20% year-over-year growth. |
ARR is a recurring-revenue measure, not the same thing as total company value or profit. The announcement figures provide context for the scale of the business Proofpoint acquired, but do not by themselves show how the acquisition will affect either company’s financial results.
Quick wins for a faster PC:
Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →Clear out junk files and repair common Windows errorsFree Scan →What happens to Hornetsecurity customers and MSP partners?
At closing, Proofpoint said Hornetsecurity would operate as a dedicated business unit serving MSPs and SMBs. Founder and CEO Daniel Hofmann would lead it as executive vice president and general manager, with Hornetsecurity’s executive team remaining in place. In its day-one post, Hornetsecurity said the group would be responsible for both the Hornetsecurity and Proofpoint Essentials product lines.
The cited announcements describe the organizational structure and product remit, but do not set out a blanket change to customer contracts, service terms, product names or support arrangements. Customers and partners should use their existing vendor or channel contacts for account-specific details.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What changed after the acquisition?
On May 13, 2026, Proofpoint announced a dedicated MSP Platform business unit and the North American launch of Proofpoint 365 Total Protection, an AI-powered Microsoft 365 security platform for MSPs. Proofpoint tied the new unit to the Hornetsecurity acquisition.
The announced service scope includes email security, phishing and ransomware defense, archiving, encryption, email continuity, Microsoft 365 backup and recovery, security awareness, access control, compliance support and AI cyber assistance. Proofpoint also announced U.S.-based data centers in Georgia. These are details of the 2026 launch announcement, not evidence of independently measured product outcomes.
PC Slower Than It Used to Be?
A free scan shows the junk files, broken settings and background clutter dragging Windows down - then fixes them in one click.Free scan · Windows 10 & 11Crashes, No Sound, or Screen Glitches?
Random freezes, missing sound and display glitches usually trace back to one bad driver. Find and replace yours safely.Free scan · under a minuteProofpoint named Pax8 as an early adopter and strategic marketplace partner for the North American platform. That establishes a stated marketplace relationship; it does not establish that either company offers an affiliate, referral or commission program.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
