SILVIA S.

Montreal, QC, Canada · Director, Security & Infrastructure Solutions · PSL Group Services Sàrl

16 followers

About

Security Architecture & Engineering Leader with over 15 years of experience building enterprise-scale security ecosystems in regulated environments. Expert in transforming fragmented security tooling into unified data platforms that improve detection accuracy and reduce operational overhead.

Specialties

  • ISO 27001
  • Policy & Standards
  • Risk Management
  • Security Auditing
  • Security Strategy

Skills

  • CrowdStrike
  • SIEM
  • DLP
  • AWS
  • Bash
  • Python
  • PowerShell
  • Linux
  • Windows
  • VMware

24 skills in total

Experience

  • PSL Group Services Sàrl

    • Director, Security & Infrastructure Solutions

      Jan 2019 — Present

      Montreal, QC, Canada

    • IT Manager – Systems Administration

      Jan 2013 — Jan 2019

      Montreal, QC, Canada

    • Systems Administrator

      Jan 2010 — Jan 2013

      Montreal, QC, Canada

6 experiences in total

Recent posts

Quick cybersecurity reality check: Buying a SIEM does not mean you are secure.

Out of the box, most security monitoring tools are completely blind to unique business and application logic. If you aren't actively engineering your detections, you're blind to real threats.

I recently ran a project simulating a fintech ecosystem to put this to the test. By building custom log ingestion pipelines and authoring targeted XML signatures, I configured the environment to catch high-severity exploits like RCE, SQLi, and API parameter tampering that standard signatures missed entirely.

The biggest takeaway? The true value of a modern SOC isn't the platform you deploy; it's the custom engineering and systematic tuning you do under the hood to eliminate false positives and catch true attacks.

the JASPER_BANK is an intentional vulnerable web application I designed with AI for simulation and never a real infrastuture. 😊

Back to building. 💻🔥

#DetectionEngineering #Cybersecurity #SIEM #Wazuh #BlueTeam #SOC #Fintech

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