Email Security
Sublime Security Platform
AI-powered email security with transparent Detection-as-Code and autonomous threat engineering.
Sublime Security Platform Overview
What it does
Sublime Security is an adaptive, AI-powered email security platform that combines transparent Detection-as-Code with autonomous threat engineering to stop Business Email Compromise (BEC), phishing, malware, and account takeover attacks. The platform features Message Query Language (MQL), the first universal domain-specific language for email security, enabling security teams to write, test, and deploy custom detections in minutes rather than months, similar to how osquery works for endpoints or YARA for binaries.
How it works
Sublime's multi-agent AI system includes the Autonomous Security Analyst (ASA) for automated triage of user-reported emails and the Autonomous Detection Engineer (ADÉ) that analyzes attack patterns and generates new detection rules. The platform combines AI-driven detection using Natural Language Understanding (NLU), Computer Vision, OCR, and QR code analysis with behavioral analysis and threat hunting capabilities. Unlike black-box solutions, every detection is human-readable and auditable, with approximately 200 community-contributed detections published on GitHub.
Credentials and traction
Sublime Security has certified to the U.S. Department of Commerce that it adheres to the EU-U.S. Data Privacy Framework, the UK Extension, and the Swiss-U.S. Data Privacy Framework, and it maintains a public Trust Center documenting its security controls. The platform is used by enterprise security teams including Brex and Elastic, both of which have published customer stories on Sublime's site, alongside adoption at organizations such as Spotify, Reddit, and Ramp. It targets in-house detection and response teams at technology-forward enterprises.
Key Capabilities
mapped to solution categoriesSeparates newsletters and bulk mail from threats by routing them to dedicated folders, refining classification from how each user files messages.
Assesses the email communication risk posture of external supplier domains, flagging suppliers with poor email authentication, recent domain registration, or anomalous communication patterns.
Detects signs of internal mailbox compromise (anomalous login geography, mail forwarding rule creation, unusual send volume), and can trigger automated session revocation.
Automates the intake, deduplication, and triage of user-submitted suspicious emails, cross-references against in-flight campaigns and triggers retroactive remediation across all recipients.
Connects to Microsoft 365 or Google Workspace via native APIs for visibility into internal and delivered mail, enabling post-delivery clawback without changing MX records.
Detects compromised or spoofed third-party supplier accounts by analyzing communication pattern deviations, domain aging, and content signals, targeting invoice fraud and payment redirection attacks.
Builds per-user and per-vendor communication baselines from historical email patterns to detect anomalous content, timing, or sender behavior without relying on signatures or blocklists.
Analyzes email body text semantically to detect social engineering, pretexting, and urgency manipulation in messages that contain no malicious attachments or URLs.
Integrations
compatible toolsImplementation & support
Info last updated on May 27, 2026
Vendors
Is this your product?
Claim your profile to connect with the teams looking for your solutions.