# security — Blog

> Articles tagged: security.

- URL: https://www.enter20.com/en/blog/tag/security/
- Español: https://www.enter20.com/blog/
- enter 2.0 — Practical AI, governed data, dashboards, automation and information systems for organisations that need to make better decisions.

- [Layered security for small internal tools: identity at the edge and failing closed](https://www.enter20.com/en/blog/layered-security-internal-tools-identity-at-edge-fail-closed/) (2026-10-06): An internal tool does not need a VPN or an exposed server. It needs identity before anything can be reached, a service that fails closed when configuration is missing, and tunnels instead of open ports.
- [Permissions live in the database, not on the screen](https://www.enter20.com/en/blog/permissions-live-in-the-database-not-the-screen/) (2026-08-13): When several departments or companies share a tool, who sees what must be decided in the database. The interface can fail; a rule on the server does not.
- [What an AI adoption diagnostic should include before you buy tools](https://www.enter20.com/en/blog/what-ai-adoption-diagnostic-should-include-before-buying-tools/) (2025-12-18): A serious diagnostic separates wishes, processes, data, risks, people and decisions before any vendors or licences are chosen.
- [How to use AI safely in organisations that handle sensitive documents](https://www.enter20.com/en/blog/using-ai-safely-with-sensitive-documents/) (2025-09-19): Using AI safely with documents depends on classification, data minimisation, human review, contracts, records and local alternatives when the risk demands them.