Horizon3 builds autonomous security operations and penetration testing platforms for enterprise security teams.
Undisclosed
Investor undisclosed
All funding news
Cybersecurity funding news
5 recent Cybersecurity rounds across our tracked sources.
Horizon3 builds autonomous security operations and penetration testing platforms for enterprise security teams.
$250MSeries E
Investor undisclosed
A $250M Series E in cybersecurity signals that enterprise security buyers are still willing to deploy massive capital on point solutions—especially if they solve a specific, painful problem at scale. At this stage and size, Horizon3 is likely consolidating market share and building out go-to-market muscle rather than proving product-market fit, which means the category itself isn't heating up, but winners are pulling away. If you're building adjacent enterprise infrastructure (compliance, identity, cloud security), watch whether they're acquiring or hiring aggressively—that tells you if they're filling gaps or just optimizing margins.
Inforcer provides MSPs with AI-powered management and threat detection for their SMB clients' Microsoft 365 environments.
$50MSeries C
A $50M Series C for M365 security signals that MSPs are finally willing to pay for AI-driven threat detection instead of DIY—the category's matured past the "nice-to-have" phase. If you're building any kind of managed service layer (compliance, data, infrastructure), this validates that buyers will fund dedicated AI tools to handle the complexity they can't manage themselves, especially when it plugs into existing platforms like Microsoft.
ThreatLocker provides endpoint security and threat prevention for MSPs and enterprises to protect against advanced threats.
$190MSeries F
Investor undisclosed
A $190M Series F for endpoint security signals that MSP-centric security tooling is still consolidating—buyers want fewer vendors, not more. At this stage and size, ThreatLocker is likely using capital to expand upmarket (direct enterprise sales) and acquire adjacent capabilities (detection/response, identity) rather than just burn for growth. If you're building any security product for SMBs or mid-market, watch whether ThreatLocker's next move is horizontal (buying detection tools) or vertical (going deeper into specific verticals)—that tells you whether the category rewards specialization or bundling.
Empirical SecurityCybersecurity
Empirical Security builds cloud security infrastructure for enterprises to detect and prevent threats.
$25MSeries A
Investor undisclosed
A $25M Series A for cloud security infrastructure signals that enterprises are finally willing to pay for *detection and prevention* rather than just compliance checkboxes—this is post-breach-fatigue spending. If you're building any kind of cloud-native tooling, this validates that security buyers have budget and urgency right now, especially if your product reduces their MTTR or eliminates a manual process they're currently doing in spreadsheets.