Nandor Katai
Cybersecurity Practitioner · Founder of iFeeltech & Valydex
Miami, Florida
About
Nandor Katai founded iFeeltech in 2003 and has spent more than two decades working directly inside business IT environments — implementing network infrastructure, deploying security controls, and advising on IT strategy for organisations across South Florida. The work is hands-on: hardware, configuration, real deployments, real clients.
Valydex started as an internal iFeeltech tool. After years of client engagements, a clear need emerged: businesses wanted to take security seriously, but the available resources consistently assumed a dedicated security team, fluency with compliance frameworks, or both. Valydex was built to close that gap — a structured assessment grounded in NIST CSF 2.0 that produces a clear, prioritised picture of where an organisation stands and what to address first.
The guides, reviews, and comparisons in the Valydex resource library follow the same principle. Each piece reflects what these tools actually look like when deployed in a working business environment — the configuration process, the edge cases, the limitations that product pages don't mention, and whether the output is actionable for a team without a dedicated security analyst.
Valydex is an independent platform. Affiliate relationships are disclosed clearly and have no bearing on assessment results or editorial recommendations. The objective is a practical, accessible starting point for businesses that want to take security seriously.
Areas of Expertise
How Content is Created
Every article on Valydex follows the same four-step process.
01
Test
Products are evaluated in actual client deployments and the iFeeltech lab, not controlled demos or vendor-provided environments.
02
Draft
Content is written from field notes: what the configuration process involves, where friction arises, and what the finished output looks like in practice.
03
Peer Review
Drafts are reviewed by a network of IT consultants, MSP operators, and security professionals before publication.
04
Maintain
Published content is monitored for material changes — pricing updates, feature changes, ownership shifts — and updated when they occur.
Content Freshness Policy
Cybersecurity tools and SaaS products change frequently. Pricing tiers shift, features are added or removed, and products are acquired or discontinued. Every review and guide on Valydex is monitored for material changes, and significant updates are reflected in the "Last Updated" date on each article. If you find something outdated, you can flag it through the contact page.
Report outdated content →Start with the Assessment
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