// cybersecurity specialist

Tomas
Hofmistr

Security Engineer & Ethical Hacker

I started out building software and running IT infrastructure, now I spend my time breaking it apart to see where it gives, then closing those gaps for a living. Network perimeters, cloud identity, DevSecOps pipelines, all of it.

live monitoring feed

From code
to defense

I spent years building software and managing IT infrastructure before moving into security full time.

That background gives me an attacker's read on systems and a builder's instincts for how they're put together, which is a decent combination when you're trying to find the weak point before someone else does. I spend a lot of time translating that into terms both engineers and the business can act on.

Right now I'm focused on cloud security, identity protection, and SIEM-driven threat detection in enterprise environments.

CEH
v13 Certified
10+
Years in IT
PA
Palo Alto Certified
Zero
Trust
Cloud Architecture

Technical
arsenal

Offense & Defense
Burp Suite Metasploit Nmap Wireshark Penetration Testing
Cloud & Identity
Azure AD M365 Conditional Access Defender for Cloud Zero Trust
SIEM & Detection
Rapid7 iDR Rapid7 iVM InsightConnect Greenbone OpenVAS Nessus Threat Detection
Network Security
Palo Alto NGFW Network Hardening Active Directory SCCM
Identity Security
Silverfort Advanced MFA Service Accounts Privileged Access
DevSecOps
Secrets Management Secure Coding Vuln Remediation CI/CD Security Veeam

Credentials

CEH
Certified Ethical Hacker v13
EC-Council
Advanced
GG
IT Security Engineer
Google
Professional
PA
Network Security Engineer & Firewall Management
Palo Alto Networks
Specialist
NW
Network Security Certification
GOC3
Professional
R7
InsightIDR & InsightVM Official Training
Rapid7
Specialist

Quick hash
utility

A small tool I keep on hand for checking file integrity or generating quick fingerprints during an investigation. Runs entirely in your browser through the Web Crypto API, nothing you type here leaves the page.

Paste any string below and pick an algorithm to see the digest update as you type.

hash.local
waiting for input

Let's work
together

Open to new opportunities in cybersecurity, a full-time role, a consulting engagement, or just a conversation about a problem you're stuck on.

whoami.sh
$ cat profile.json {   "name": "Tomas Hofmistr",   "role": "Cybersecurity Specialist",   "focus": [     "Cloud Security",     "Threat Detection",     "Zero Trust"   ],   "status": "open_to_hire" } $