Cythera Cyber Security

Trusted cybersecurity partners across New Zealand and Australia

Cythera is an Australian cybersecurity company founded by industry experts to help growing and mid-sized organisations defend against today’s evolving cyber threats. We deliver end-to-end cybersecurity services across managed detection and response, incident response, penetration testing, and vCISO advisory—combined with extensive professional security consulting that helps clients advise, architect, and protect their environments.

In 2024, Cythera joined forces with Bastion Security Group, New Zealand’s leading cybersecurity provider. Backed by Quadrant Private Equity, we’ve formed a regional leader in cybersecurity services, combining local expertise with global technologies.

Together, we support over 400 organisations across Australia, New Zealand, and beyond—spanning healthcare, education, government, logistics, and financial services.

Cythera is known for its practical, human-led approach and deep security expertise. Our teams work closely with clients to reduce risk, improve cyber resilience, and build long-term security strategies that grow with their business.

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Cythera Cyber Security

Comprehensive cybersecurity support from strategy to execution

Whether you need strategic insight or practical technical support, our team is here to help you tackle cyber risks with confidence. We blend hands-on experience, trusted technologies and deep domain expertise to deliver outcomes that count.

Recognised expertise in both offensive and defensive security
Trusted by enterprise, government, and critical sectors
Full-spectrum services – from advisory to delivery and managed protection

About Cythera

Who are we

Cythera, established in late 2018, has experienced seven years of steady growth under private ownership before entering a transformative phase in late 2024.

Experienced Team

Security professionals across New Zealand & Australia

The company merged with New Zealand-based Bastion Security Group, a respected cybersecurity firm, to create a leading force in the industry.

This strategic merger enhances capabilities and expands market reach, enabling the combined entity to address complex cybersecurity challenges more effectively.

The merger is backed by Quadrant Private Equity, a renowned firm with a proven track record of investing in high-growth technology companies.

With over 150 cybersecurity specialists and more than 400 clients, the combined entity is well-positioned to continue delivering exceptional results.

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Leadership teams

Cyber security specialists

Bastion Security Group brings together the expertise of Quantum Security, ZX Security, Helix Security, Cassini and Cythera Cyber Security to deliver cyber security services trusted across New Zealand.

Discover our team

Hanna Paek

Account Manager

Hanna is all about building genuine long-term relationships with the people she works with.

Robin

Network & Security Engineer

Robin brings a detail-oriented, results-driven approach to every engagement. Known for his friendly nature, “can-do” attitude, and enthusiasm for new challenges, he’s delivered multiple security projects across industries including law, automotive, construction, technology, non-profit, and education.

Garry

Network & Security Engineer

Garry is involved in planning, maintaining, and deploying solutions using the CATO platform as well as other SASE technologies.

Joh McPhee

Regional Sales Manager

With over 25 years of experience in the IT sector - spanning leading Telcos, global technology vendors, and the last five years with Cythera as a pure-play security organisation - Joh brings a truly diverse industry background

What comes next

Enhance your organisation's cyber maturity

In addition to our core services, Cythera provides specialised solutions to strengthen your organisation’s cyber resilience. These services are built to integrate with your current environment and help address emerging threats.

Security Architecture & Engineering – Build secure, scalable systems that align with your business goals
Penetration Testing & Red Teaming – Uncover weaknesses through thorough and realistic attack simulations
Managed Detection & Response (MDR) – Round-the-clock monitoring and expert-led response to protect against active threats

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Security Architecture

Security Engineering turns strategy into action. From compliance to DevSecOps, we enhance your security architecture and build resilient teams to keep you ready, protected, and confident.

Partners

Our platform partners

We work with a trusted network of technology and security partners to deliver scalable, future-ready solutions for our clients. From leading CNAPPs and SIEM tools to automation and compliance platforms, our partnerships help you stay secure, visible and in control.

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