# Sigtel > Automated intelligence briefing system that monitors topics across the open web and synthesizes decision-grade briefs for analysts and executives. Sigtel ingests signals from thousands of sources, validates and clusters them into events, and delivers concise intelligence briefs by email and web. The product is organized around three concepts users interact with: Topics (what to monitor), Updates (validated signals and events), and Briefs (executive summaries). ## Pages - [Home](/): Overview of Sigtel, how the intelligence pipeline works, and who it's for. - [Pricing & Signup](/signup): Plan tiers (Free, Pro, Enterprise) and account creation. - [Sign in](/auth): Sign in to an existing Sigtel account. - [Contact](/contact): Sales and support contact information. ## Optional - [Terms of Service](/terms): Terms governing use of the Sigtel platform. - [Privacy Policy](/privacy): How Sigtel collects, uses, and protects data.