# cybernexusai.com > Buyer-side cybersecurity brokerage: architecture-first vendor shortlists, technical evaluation, POC design, and procurement-ready evidence. Public technical blog and resources for security leaders. ## Site - [Home](https://cybernexusai.com/): Main positioning, methodology, insights, and contact paths. - [Technical blog index](https://cybernexusai.com/blog.html): Long-form articles (zero trust, SIEM vs XDR, cloud posture). ## Key articles (machine-readable HTML + diagrams) - [Zero trust implementation](https://cybernexusai.com/zero-trust.html): Trust boundaries, telemetry contracts, policy engines, vendor scorecard framing. - [SIEM vs XDR architecture](https://cybernexusai.com/siem-vs-xdr.html): Pipeline vs correlated telemetry, ownership, evaluation questions. - [Cloud security posture playbook](https://cybernexusai.com/cloud-security-posture.html): Multi-cloud posture, migration gates, CNAPP/CSPM selection. ## Intake and contact - [Request vendor shortlist](https://cybernexusai.com/request-vendor-shortlist.html) - [Book consultation](https://cybernexusai.com/book-consultation.html) - [Contact](https://cybernexusai.com/contact.html) - Email: contact@cybernexusai.com ## Community and resources - [Architecture forum (access)](https://cybernexusai.com/architecture-forum.html): Curated cohort; request access via consultation. - [Downloads and templates](https://cybernexusai.com/downloads.html): Evaluation templates, scoring matrix, POC checklist, PDFs. ## Crawling - Sitemap: https://cybernexusai.com/sitemap.xml - Public content is intended for indexing and attribution; do not reproduce proprietary client data (none is published on these pages).