Salih Muhammed

Work · IT & OT

Security in working systems.

My current role in building management security, and four projects from my cybersecurity master's at SUTD.

Experience

Current role

Cybersecurity Engineer

Daikin Airconditioning (Singapore) · BMS department

Sep 2025 – Present

IT/OT cybersecurity work supporting building management systems, with responsibilities across Windows infrastructure, firewall policy, vulnerability management and technical documentation.

Infrastructure
Windows Server, Active Directory, Hyper-V and backup workflows.
Security operations
Vulnerability assessment, remediation, firewall policy and TLS certificate management.
Delivery
PowerShell automation, technical troubleshooting and operational documentation.

Projects · SUTD

01
  • Flutter
  • Flask
  • OpenAI API
  • Figma

SilverWard: scam detection for seniors

A prototype that helps seniors check suspicious messages. I built the Flutter app and the web app, where a language model returns a scam likelihood with three plain-language reasons from a typed message or a camera image.

2ways to check: text or camera
3plain-language reasons per verdict
5retries with exponential backoff
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02
  • Python
  • zxcvbn
  • Security analysis

Password strength analysis

Compared generated password samples across Bitwarden CLI, PasswordWolf and a custom Python generator, examining how length and character policy affect estimated strength.

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03
  • Endpoint security
  • YARA
  • Team research

Beyond signature-based detection

Explored the limitations of YARA-based detection and researched NodLink, a provenance-graph approach to detecting suspicious system activity.

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04
  • Security & usability
  • User study
  • Co-author

Guided secure network design

Co-authored a study examining how lightweight guidance influenced participants' security and usability decisions when designing a simulated SME network.

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Get in touch Let's talk security.