https://justnunuz.github.io/blog Writing about cybersecurity, compliance, and the evolving threat landscape by Nunudzai Mrewa. en https://justnunuz.github.io/blog/whatsapp-usernames-security https://justnunuz.github.io/blog/whatsapp-usernames-security Why WhatsApp's new username feature is one of the most meaningful privacy improvements the platform has introduced in years. 2026-07-13 https://justnunuz.github.io/blog/omg-cable-favorite-hacking-tool https://justnunuz.github.io/blog/omg-cable-favorite-hacking-tool A reflection on the OMG cable - why it remains my favourite piece of offensive hardware, the experiment I'm running with it right now, and a friendly warning about borrowing cables from me. 2026-04-20 https://justnunuz.github.io/blog/understanding-zcdpa https://justnunuz.github.io/blog/understanding-zcdpa Implementation realities of the Cyber and Data Protection Act - from data residency headaches to why forking GDPR was clever, cowardly, and a little bit lazy. 2026-03-15 https://justnunuz.github.io/blog/llm-prompt-injection-defense https://justnunuz.github.io/blog/llm-prompt-injection-defense How to protect AI-powered applications from prompt injection vulnerabilities that can compromise data integrity and system security. 2026-02-28 https://justnunuz.github.io/blog/honeypots-threat-detection https://justnunuz.github.io/blog/honeypots-threat-detection Why deception belongs in every defender's toolkit, and how Thinkst Canary and canary tokens turn attacker curiosity into high signal alerts. 2026-02-10 https://justnunuz.github.io/blog/sdwan-security-architecture https://justnunuz.github.io/blog/sdwan-security-architecture Key security considerations when designing and deploying Software-Defined Wide Area Networks for enterprise environments. 2026-01-20 https://justnunuz.github.io/blog/penetration-testing-methodology https://justnunuz.github.io/blog/penetration-testing-methodology A practical, adversarial approach to penetration testing - from recursive reconnaissance that asks why, to stealth and loud scanning, and a remediation framework that separates quick fixes from proper fixes. 2026-01-05 https://justnunuz.github.io/blog/iso-27001-implementation-lessons https://justnunuz.github.io/blog/iso-27001-implementation-lessons Practical insights and common pitfalls from leading ISO 27001 implementations across diverse organizational contexts. 2025-12-15