# Security & Risk: the tools companies use 430 companies on usedby use a tool of its 4 categories with a public customer. Each category ranks its own tools: tools of different jobs are not ranked against each other. Counts are of companies on usedby, not of the whole market. Latest check 2026-10-10: 462 of 463 public lines checked. > Cybersecurity, AI security and governance, fraud and anti-money laundering, and compliance automation. ## Categories - [AI Cyber Defense](https://www.usedby.ai/tools/category/ai-cyber-defense.md): 177 companies, 8 tools with a public customer; most used: Abnormal AI - [Fraud & AML](https://www.usedby.ai/tools/category/fraud-aml.md): 136 companies, 7 tools with a public customer; most used: Unit21 - [Compliance Automation](https://www.usedby.ai/tools/category/compliance-automation.md): 75 companies, 3 tools with a public customer; most used: Vanta - [AI Security & Governance](https://www.usedby.ai/tools/category/ai-security-governance.md): 58 companies, 6 tools with a public customer; most used: Cyera --- Source: https://www.usedby.ai/tools/category/security-risk ยท How we check: https://www.usedby.ai/methodology