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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
December 5, 2019

How Your Business Can Benefit from a Penetration Testing Provider

Lean Security Expert
December 5, 2019
How Your Business Can Benefit from a Penetration Testing Provider

A penetration test may also evaluate an organisation’s security policy compliance, its employees’ security awareness, and the organisation’s ability to identify and respond to security threats and breaches.

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Lean Security Expert
December 3, 2019

What Hackers Look for in a Mobile App

Lean Security Expert
December 3, 2019
What Hackers Look for in a Mobile App

Here are some vulnerabilities hackers look to exploit in mobile apps.

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Lean Security Expert
November 30, 2019

5 Reasons Why Cloud-Based Security is Right for Your Business

Lean Security Expert
November 30, 2019
5 Reasons Why Cloud-Based Security is Right for Your Business

Here are five reasons why your business could do with cloud-based security.

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Lean Security Expert
November 27, 2019

3 Ways You Can Stay Secure on MMO Games Online

Lean Security Expert
November 27, 2019
3 Ways You Can Stay Secure on MMO Games Online

As MMOGs become more and more popular, the need for tighter security increases. Here’s a few things you can do to avoid falling prey to online game fraud.

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Lean Security Expert
November 25, 2019

5 Most Common Types of Application Attacks

Lean Security Expert
November 25, 2019
5 Most Common Types of Application Attacks

Here are 5 common types of application attacks.

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Lean Security Expert
November 23, 2019

A Beginner’s Guide to External Penetration Testing

Lean Security Expert
November 23, 2019
A Beginner’s Guide to External Penetration Testing

Here’s a useful beginner’s guide to external penetration testing.

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Lean Security Expert
November 20, 2019

Professional Malware Detection Service: Why Is It Important?

Lean Security Expert
November 20, 2019
Professional Malware Detection Service: Why Is It Important?

Let’s learn why it is so important to hire professional malware detection services for your business: 

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Lean Security Expert
November 10, 2019

Me Confused: What’s the Difference Between Mobile And Web Application Penetration Testing?

Lean Security Expert
November 10, 2019
Me Confused: What’s the Difference Between Mobile And Web Application Penetration Testing?

In this blog, you can read about how mobile and web application penetration testing contrast from one another.

1 Comment
Lean Security Expert
November 6, 2019

5 Best Practices For Choosing a Penetration Testing Company

Lean Security Expert
November 6, 2019
5 Best Practices For Choosing a Penetration Testing Company

Here are five best practices for hiring the right penetration testing company:

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Lean Security Expert
October 14, 2019

Effects of Malware on Websites [Infographics]

Lean Security Expert
October 14, 2019
Effects of Malware on Websites [Infographics]

Check out the effects of malware on website.

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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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