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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
January 28, 2021

How Hackers Can Penetrate Your Business Networks?

Lean Security Expert
January 28, 2021
How Hackers Can Penetrate Your Business Networks?

This blog post will highlight how cybercriminals attack businesses.

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Lean Security Expert
January 20, 2021

Present Your Small Business with the Gift of Cyber Security

Lean Security Expert
January 20, 2021

Present Your Small Business with the Gift of Cyber Security

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Lean Security Expert
January 15, 2021

What Kind Of Penetration Test Is The Right Fit For Your Business?

Lean Security Expert
January 15, 2021
What Kind Of Penetration Test Is The Right Fit For Your Business?

Selecting the right type of penetration test to assess your organization’s cyber-security needs and vulnerabilities is important. Let Lean Security tell you how.

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Lean Security Expert
January 13, 2021

The Basics of Web Application Pen Testing

Lean Security Expert
January 13, 2021
The Basics of Web Application Pen Testing

A penetration testing service provider can help you uncover vulnerabilities in your web application and prevent cyber-attacks. Read on to find out how it is performed.

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Lean Security Expert
November 30, 2020

Top 4 Threats Online Gamers Need to be Wary Of (infographics)

Lean Security Expert
November 30, 2020

Here are the threats online gamers should be war of

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Lean Security Expert
November 12, 2020

Security Risk Assessment - Why Do You Need It

Lean Security Expert
November 12, 2020
Security Risk Assessment - Why Do You Need It

Read all about why you need security risk assessment

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Lean Security Expert
November 8, 2020

Security Challenges in Hybrid Cloud Environments

Lean Security Expert
November 8, 2020
Security Challenges in Hybrid Cloud Environments

While hybrid cloud environments give greater control and scalability, it comes with a range of cybersecurity challenges.

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Lean Security Expert
November 5, 2020

Exploitative Facial Recognition Devices

Lean Security Expert
November 5, 2020
Exploitative Facial Recognition Devices

You may think that facial recognition is a smart technology, but it’s doing more harm than good.

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Lean Security Expert
November 2, 2020

Secure Setup for Remote Working

Lean Security Expert
November 2, 2020
Secure Setup for Remote Working

The coronavirus outbreak has led to a lot of us to work from home. Ensure that you're safe from cybercrimes while working remotely.

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Lean Security Expert
October 28, 2020

Pen Testing vs. Source Code Review: What’s Best for Web Application Testing?

Lean Security Expert
October 28, 2020
Pen Testing vs. Source Code Review: What’s Best for Web Application Testing?

Looking for a cybersecurity service, but can’t decide between pen testing and source code review? Here’s how you can make that decision.

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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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