Primary focus
Server and network hardening, vulnerability response, patch prioritization and infrastructure security review
Editorial profile
Marcin Pocztowski
Marcin Pocztowski works on infrastructure, server administration and network-security review. His visible technical record starts with Security+ evidence dated January 16, 2006, continues through Cisco and Juniper network records from 2008-2009 and RHCSA evidence dated November 30, 2014, and is tied to MMPS work covering Linux/Unix, Windows Server, virtualization, hosting, backup, data recovery and networks built with Juniper, Cisco and Mikrotik equipment. At HackWatch he checks vulnerability stories for affected versions, patch status, exposure paths and whether the remediation advice is realistic for administrators.
The profile does not publish private client names, client counts or network sizes unless they are independently verifiable and cleared for publication. What can be stated publicly is the work type: production server administration, network-device configuration, hosting operations, backup and recovery, data-recovery support and security-audit remediation where access paths, patch windows and downtime matter. HackWatch uses his review on infrastructure-heavy alerts where the source trail has to line up: CVE records, vendor advisories, fixed versions, CISA KEV context and practical compensating controls.
Editorial transparency. This profile is tied to Marcin's LinkedIn, X profile and documented editorial work on HackWatch. Historical certificates are treated as background evidence only, not as current active credentials.
Technical background
Technical Background & Certifications
These three records explain Marcin's infrastructure background: Linux administration, Juniper security and baseline security practice. They are certificate scans on file and are used here as technical background evidence, with no inflated claim of active issuer status.
Red Hat Certified System Administrator (RHCSA)
Evidence on file: issued November 30, 2014.
Date: November 30, 2014
Why it matters here: Linux administration, server hardening, patch management
View certificate PDFVerify with Red HatOfficial Red Hat verification portal using certificate ID 140-237-421.
Juniper Networks Certified Internet Specialist - JUNOS Security (JNCIS-SEC)
Evidence on file: issued November 30, 2009.
Date: November 30, 2009
Why it matters here: network security, Juniper security, vulnerability response
View certificate PDFJuniper CertMetrics portalOfficial Juniper credential-management portal; individual public verification requires a published CertMetrics credential link.
CompTIA Security+
Evidence on file: issued January 16, 2006.
Date: January 16, 2006
Why it matters here: security audits, infrastructure hardening, vulnerability triage
View certificate PDFCompTIA verification portalOfficial CompTIA verification portal; historical records may require a candidate transcript or verification code.
Experience & Expertise
Public technical record spans 20 years: Security+ evidence dated January 16, 2006, Cisco and Juniper network records from 2008-2009, and RHCSA evidence dated November 30, 2014.
MMPS work is described around server and network administration, hosting, backup, data recovery and security-audit work; HackWatch does not publish client names or client counts without verifiable public consent.
Production scope is stated in concrete technical terms: Linux/Unix, Windows Server, virtualization, Juniper, Cisco and Mikrotik environments rather than vague 'cybersecurity expert' language.
HackWatch review focus: affected versions, patch status, exposure paths, compensating controls, log preservation and whether remediation advice is usable by administrators responsible for live infrastructure.
Contribution to HackWatch.io
Marcin reviews HackWatch alerts related to server infrastructure, network devices, known exploited vulnerabilities and remediation guidance.
Editorial responsibility
This profile organizes HackWatch coverage by topic, documents who maintains the coverage area and makes the related source standards visible to readers.
What this editor is responsible for
Owns high-priority vulnerability alerts where readers need fast clarity on exposure, fixes and compensating controls.
Keeps exploit reporting tied to real version guidance, patch status, infrastructure exposure and practical triage rather than abstract severity labels.
Strengthens internal linking between vulnerability alerts, exposure tools and response playbooks when a flaw becomes operationally important.
Challenges drafts that lack source evidence, affected-version detail, patch status or practical remediation value.
Latest alerts by Marcin Pocztowski
Editorial contact and accountability
Questions about sourcing, factual corrections or article updates should go through the editorial contact or the dedicated corrections channel. HackWatch keeps named reviewer profiles public so readers and reviewers can see who is responsible for incident coverage and recovery-oriented content.