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Oliver Buchannon
Chiderah Ikocha

U.S. Air Force veteran turned cybersecurity practitioner. Founder of SecurityTide. Currently in London finishing my BIS&IT degree and chasing the RHCSA. Writing about Linux, pentesting, and the African cyber landscape.

SecurityTide #003

Jun 20, 2026

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5 min read

SecurityTide #003

Back after a gap I'll own up to. The npm supply-chain worm that's still spreading, the RHCSA skill that's all about breaking back into a system you're locked out of, and the command that reads the story of your last boot.

Chiderah Ikocha
Chiderah Ikocha
SecurityTide #002

May 23, 2026

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5 min read

SecurityTide #002

A poisoned VS Code extension breached GitHub itself, what RHCSA networking taught me about my own journey, and the tool that took me from Packet Tracer to real Linux networks.

Chiderah Ikocha
Chiderah Ikocha
SecurityTide #001

May 18, 2026

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3 min read

SecurityTide #001

A new beat begins.Welcome to issue one. Nigeria's treasury just got owned, RHCSA prep notes from this week, and the Linux command I quietly love.

Chiderah Ikocha
Chiderah Ikocha

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