Proofpoint is an Email, AppSec & GRC company founded in 2002 and based in Sunnyvale, United States.
No dated funding rounds on file. This company is privately held and may be raising or operating on undisclosed capital.

Microsoft, Health-ISAC, JC3 and private partners disrupt three phishing kits tied to over 1 billion scam messages since January 2026.
Proofpoint Email Protection is the company's flagship gateway that filters inbound and outbound email to block spam, phishing, malware, and business email compromise before messages reach user inboxes. It uses threat intelligence and machine learning to classify attacks across large enterprise and mid-market mailboxes. Security teams deploy it to reduce credential theft and impersonation risk, and it integrates with Microsoft 365 and Google Workspace environments. It remains the core product that built Proofpoint's reputation in email security.
Targeted Attack Protection (TAP) detects, analyzes, and blocks advanced threats delivered through email, cloud apps, and collaboration tools, including URL and attachment-based attacks. It uses sandboxing and threat intelligence to identify attacks that evade signature-based defenses, and it rewrites suspicious URLs for time-of-click inspection. Security operations teams use TAP alerts and forensic data to investigate campaigns targeting specific people. Its focus on targeted, people-centric threats differentiates it from generic filtering.
Insider Threat Management correlates user activity, endpoint events, and data movement to identify careless, compromised, or malicious insiders. It captures contextual session evidence so analysts can review what happened before, during, and after a risky action. Security and HR teams use it to investigate data theft, policy violations, and privileged-user misuse. Its differentiator is combining behavioral analytics with people-centric risk scoring rather than relying only on content inspection.