Cybersecurity founder & instructor · 5‑day NITDA training partner (2023) · Apple web security acknowledgements
Lagos, Nigeria
Work formatOfficeHybridRemoteEverything above is an outside read of where you've been. This is the one block you write yourself — the direction you're steering toward.
Founder/lead instructor of a cybersecurity training company with public-sector training delivery (NITDA) suggests strong fit for instructional and program-lead roles. Apple vendor acknowledgements support credibility as a web/app security researcher.
Career trajectory
Read purely by the companies on record — the same shortcut a recruiter takes.
founder / instructor
public‑programme partner
security researcher
Moves from founding and instructing at a Lagos training company to visible public‑sector delivery and vendor‑recorded research contributions.
↗ Ascending⚠Sparse dated milestones; confirm exact start dates and leadership titles at O‑Range to lock the slope.
Running O‑Range Cyber Security & Training Services in Lagos and teaching hands‑on cybersecurity classes.
I help teams and students understand how attackers actually think, from reconnaissance to exploitation, and turn that into practical defenses. At O‑Range, I’ve delivered hands‑on classes and real‑world VAPT work, and I’ve led public trainings in partnership with NITDA. I can guide responsible disclosure workflows with product teams, design beginner‑friendly curricula for 3–5 day intensives, and mentor early‑career practitioners toward their first real findings.
›Responsible disclosure: from report to vendor acknowledgement
›Designing a 5‑day starter cybersecurity bootcamp
›Web app recon and bug‑hunting workflows
Apple lists Yunus Oyetunde (Coy Emerald) in its web server security acknowledgements across 2025–2026, a high‑signal vendor recognition. He founded O‑Range Cyber Security & Training Services Ltd in Lagos and actively teaches as lead instructor, operating from an Isolo training center. NITDA’s official channel named him a delivery partner for a 5‑day free cybersecurity training in Offa, Kwara, with trade press coverage. Kwara State Government publicly congratulated him for the Apple recognition, and national outlets like Tribune reported on it. Corporate and directory traces (B2BHint, Crunchbase) corroborate the O‑Range entity, address, and a fuller legal name variant. Several self‑claims (Google/MSRC listing, an NPF youth cybersecurity award, named NPF ‘Rescue Me’ credit) lack independent confirmation on official pages reviewed and remain open diligence items.
An outside read of the profile based on available evidence — what's strong, the one thing to tighten, and what else surfaced.
This reads as an independent cybersecurity instructor/founder with credible vendor recognition (Apple) and visible public‑sector engagement (NITDA), anchored in a Lagos‑based training company. The footprint is practitioner‑heavy — classes, community projects, and write‑ups — with government amplification of recognition. Some self‑claims beyond Apple remain unverified on primary sources and deserve routine diligence.
Apple acknowledgements plus a named NITDA partnership and an active Lagos training center give a grounded picture of a practitioner doing real work.
Apple vendor acknowledgement
Apple lists “Yunus Oyetunde (Coy Emerald)” on its web server security acknowledgements.
Public‑sector delivery
NITDA’s post names him a partner for a 5‑day cybersecurity training programme in Offa.
Operating company
O‑Range’s site and directory traces show an operating training/services business in Lagos.
Several recognitions and credits (Google/MSRC listings, NPF app work, a 2026 award claim) are not corroborated on official public pages checked.
Fuller legal name variant on registry proxy B2BHint shows “Oyetunde Yunus Oluwadamilare,” useful for formal checks.
Kwara roots and community work Offa origin and local sponsorship/teaching surfaced in interviews and Nairaland posts.
Government amplification Kwara State Government publicly congratulated him for Apple recognition.
Published write‑ups Medium contains technical posts and third‑party community recaps involving “Coy Emerald.”
Web sources + resume claims.
O‑Range Cyber Security & Training Services Ltd — Founder & Lead Instructor
Verified · 3 sourcesPresent
Founded and runs O‑Range from an Isolo, Lagos center; delivers hands‑on cybersecurity training and services; partnered with NITDA on a 5‑day public training in Offa, Kwara (Sept 2023).
Public training programme in partnership with Nigeria’s NITDA, delivered in Offa, Kwara.
Claims responsible disclosure to the NPF ‘Rescue Me’ team; app is live in app stores, but no official NPF credit naming him was located in this sweep.
A self‑published guide on cybersecurity/ethical hacking shared via personal channels; independent catalog entries not surfaced in this sweep.
Publishes security analyses and tutorials, including vulnerability research, on Medium.
Sponsored local cyber training/scholarship activities and participated as instructor in community events in Offa/Kwara.
Acknowledged by Apple for contributions to the security of Apple’s web servers in 2025–2026 (Apple pages list “Yunus Oyetunde (Coy Emerald)”).
Kwara State Government issued an official press release congratulating “Kwara‑born ethical hacker, Coy Emerald,” on Apple recognition.
ITWeb Africa covered NITDA’s partnership with ethical hacker “Coy Emerald” for a public training programme.
Tribune Online reported on Apple recognition attributed to Nigeria’s Yunus Oyetunde and separately quoted him on Nigeria Police website security concerns.
Each read carries a compliment and a tension, with its proof right beside it. It gets sharper as you go.
Tawakalitu Grammar School, Offa
Self‑reported in interview; no dates provided.
sponsor/instructor
Offa/Kwara community events (per Nairaland)2023
PRESS & INTERVIEWS (9)
CORPORATE & PRODUCT (9)
VERIFICATION CHECKS — RAN CLEAN (3)
SOCIAL & DIRECTORIES (4)
Yunus Oyetunde works as Founder & Lead Instructor at O‑Range Cyber Security & Training Services Ltd, based in Lagos, Nigeria.
Yunus Oyetunde is a cybersecurity founder and instructor known for Apple web security acknowledgements and NITDA training partnership.
Running O‑Range Cyber Security & Training Services in Lagos and teaching hands‑on cybersecurity classes.
Yunus Oyetunde has worked at 1 company on record:
Projects and ventures Yunus Oyetunde is behind:
Skills listed on Yunus Oyetunde's profile: cybersecurity instructor & founder. I help teams and students understand how attackers actually think, from reconnaissance to exploitation, and turn that into practical defenses. Can teach: Responsible disclosure: from report to vendor acknowledgement; Designing a 5‑day starter cybersecurity bootcamp; Web app recon and bug‑hunting workflows.
Yunus Oyetunde is open to training partnerships, VAPT engagements, public‑sector programs and local speaking slots.
Yunus Oyetunde's education:
Public mentions of Yunus Oyetunde:
Yunus Oyetunde's public sites and channels:
Community and volunteer work on record:
This profile is assembled from 23 public sources, last aggregated 2026-09-09. Every fact carries a label: Verified (backed by two or more independent sources), Vouched (confirmed by a person who worked with them) or Self-reported. 6 facts are confirmed by cited sources. It is a public-source professional profile, not a background check.
Controlled by Yunus Oyetunde
A registered account is linked to this profile — a living profile a real person maintains, not a passive scrape.
