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Expert Penetration Testing Services in Sydney | Lean Security

Penetration Testing
AI Penetration Test
Web Application Penetration Test
Mobile Application Penetration Test
API Penetration Test
IoT Penetration Test
External Network Penetration Test
Strategic Advisory
Threat Modelling
Bespoke Threat Advisory Service
AI Red Teaming
Adversary Simulation (Red & Purple Teaming)
Knowledge Base
Prices
Company
About Us
Why Us
Partners
Blog
Contact Us
November 12, 2025
Lean Security Expert
CISA Alert: LANDFALL Spyware Hits Australian ...

A zero-click vulnerability, CVE-2025-21042, in millions of Samsung devices is being actively exploited to install "LANDFALL," a commercial-grade spyware. This threat, now on CISA's KEV catalog , transforms an executive's personal device into a silent corporate surveillance tool, completely bypassing your MDM and EDR. For Australian organisations with BYOD policies, this is a critical, reportable data breach scenario under the NDB scheme.

CISA Alert: LANDFALL Spyware Hits Australian BYOD Devices
October 25, 2025
Lean Security Expert
Beyond the Patch: Why the Actively Exploited ...

Actively exploited WSUS flaw CVE-2025-59287 (CVSS 9.8) threatens Australian businesses. Patching isn't enough. See why red teaming is essential to validate your security.

Beyond the Patch: Why the Actively Exploited WSUS Vulnerability (CVE-2025-59287) Demands a Red Team Response in Australia
October 12, 2025
Lean Security Expert
Oracle EBS Zero-Day CVE-2025-61882: Australian ...

Critical Oracle EBS zero-day CVE-2025-61882 actively exploited. Australian firms face data theft. Move beyond patching to proactive red teaming & security.

Oracle EBS Zero-Day CVE-2025-61882: Australian Threat
September 27, 2025
Lean Security Expert
ACSC HIGH ALERT: Your CI/CD Pipeline is the New ...

The ACSC has issued a high alert on attacks against Australia's software supply chain. Adversaries are no longer just targeting your live systems; they are infiltrating the "factory" where your software is built. We simulate these advanced, multi-stage attacks to validate your defences against this critical threat.

ACSC HIGH ALERT: Your CI/CD Pipeline is the New Frontline. Are You Prepared for a Supply Chain Attack?
September 15, 2025
Lean Security Expert
ACSC ALERT: Is Your SonicWall VPN an Open Door ...

The ACSC confirms the Akira ransomware group is actively exploiting SonicWall VPNs to breach Australian businesses. Patching is not enough—attackers are bypassing the fix. With Australia's new mandatory reporting laws, this technical vulnerability can quickly become a regulatory and legal disaster.

ACSC ALERT: Is Your SonicWall VPN an Open Door for Akira Ransomware in Australia?
Lean Security Expert
October 20, 2017

Data Breach- A Guide For Mitigating The Risks

Lean Security Expert
October 20, 2017
Data Breach- A Guide For Mitigating The Risks

To diminish security threats, evaluation of employee exit strategies and off-site data storage practices.

 

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Lean Security Expert
October 16, 2017

Web Application Security Checklist 2017 – Are You Ready?

Lean Security Expert
October 16, 2017
Web Application Security Checklist 2017 – Are You Ready?

2018 is just around the corner. The year went by so fast, bringing along with it new opportunities and possibilities regarding web application security.

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Lean Security Expert
October 11, 2017

How Well Is The Security Testing In Your Organisation?

Lean Security Expert
October 11, 2017
How Well Is The Security Testing In Your Organisation?

With the growing number of breaches and online threats, it’s really surprising how many businesses fail to cater to their information security testing.

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Lean Security Expert
October 7, 2017

How-to Improve Cyber Security For Non-Profit Organisations

Lean Security Expert
October 7, 2017
How-to Improve Cyber Security For Non-Profit Organisations

The number of businesses and organisations that have been hacked by cyber-criminals and malicious hackers just keeps increasing.

Cyber-security experts are scrambling here and there to cover all vulnerable holes within a framework – considering no organisation is safe from hackers.

Comment
Lean Security Expert
October 2, 2017
Network Security

Highlighting Open Source Software – How Detrimental It Is For Your Company

Lean Security Expert
October 2, 2017
Network Security
Highlighting Open Source Software – How Detrimental It Is For Your Company

Like many businesses looking to increase productivity and efficiency without shelling out the extra bucks, you also must have thought about exploring the world of open source software.

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Lean Security Expert
August 25, 2017

Infographic: Five Most Common Security Concerns Businesses Face Today

Lean Security Expert
August 25, 2017

From untested system to exposed source, read five most common security concerns businesses face today

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Lean Security Expert
August 22, 2017

Web Security Issues You’re Not Addressing

Lean Security Expert
August 22, 2017
Web Security Issues You’re Not Addressing

Back in 2013, a popular research study by the National Institute of Standards and Technology concluded that inadequate web security and tools cost the economy as much as $22.2 billion annually

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Lean Security Expert
August 18, 2017

Conducting Web Application Testing On Your Own? This Checklist Will Help

Lean Security Expert
August 18, 2017

All business owners want their websites to work smoothly and leave the right impression on their customers. Apart from the web design and how web applications seem on the surface, there’s a lot that can be done to prevent unpleasant surprises.

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Lean Security Expert
August 14, 2017

Application Security Is Fraught With Mystery – 3 Myths Busted

Lean Security Expert
August 14, 2017
Application Security Is Fraught With Mystery – 3 Myths Busted

It is not surprising to see that many companies continue to grapple with application security.

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Lean Security Expert
August 10, 2017

3 PCI Compliance Mistakes You Need to Stop Making Today!

Lean Security Expert
August 10, 2017
3 PCI Compliance Mistakes You Need to Stop Making Today!

With the digital business environment falling victim to breaches and hacks every day, it is now more important than ever to protect your business operations by ensuring safety for customer data.

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Lean Security, 81-83 Campbell Street, Surry Hills, NSW, 2010, Australia+61 (2) 8078 6952info@leansecurity.com.au

About Lean Security

We are a specialist cybersecurity firm based in Sydney, focusing on penetration testing. We partner with organisations across Australia, providing expert-led testing and clear, actionable reports. Our goal is to give you the clarity and confidence needed to secure your digital assets.

     
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