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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
April 26, 2020

Cloud Security Challenges: Explore the Top Cloud Security Threats

Lean Security Expert
April 26, 2020
Cloud Security Challenges: Explore the Top Cloud Security Threats

Before we set out to understand the risks uncovered by penetration testing service providers, let’s start by answering some basic questions.

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Lean Security Expert
April 23, 2020
Pen Testing

5 Ways to Protect Your E-Commerce Site from Hackers in 2020

Lean Security Expert
April 23, 2020
Pen Testing
5 Ways to Protect Your E-Commerce Site from Hackers in 2020

There are many steps you can take to ensure the safety of your website. Here’s a list of five of them:

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Lean Security Expert
February 14, 2020

Creating a Culture of Cyber-Security at work

Lean Security Expert
February 14, 2020
Creating a Culture of Cyber-Security at work

A look at three big security threats to small business, and some tips for shoring up your defenses

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Lean Security Expert
February 12, 2020

Internet of Things (IoT) Security in 2020: Expert Advice You Should Follow

Lean Security Expert
February 12, 2020
Internet of Things (IoT) Security in 2020: Expert Advice You Should Follow

What is the Internet of Things, and should we be concerned about security threats? Here’s your 2020 primer on beefing up IoT security in 2020.

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Lean Security Expert
February 10, 2020

E-commerce Security 101: What You Should Know

Lean Security Expert
February 10, 2020

Cyberattacks necessitate e-commerce security. Here are the fundamentals of what it entails.

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Lean Security Expert
February 6, 2020

Prioritizing Web Security in Digital Marketing

Lean Security Expert
February 6, 2020
Prioritizing Web Security in Digital Marketing

To prevent any of this from happening to your business, you need to prioritize cybersecurity for your website when running your digital marketing campaign.

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Lean Security Expert
February 4, 2020

5 Expert Tips for Social Media Security to Mitigate Risks

Lean Security Expert
February 4, 2020
5 Expert Tips for Social Media Security to Mitigate Risks

If you run a business and want to tighten social media security, follow these expert tips.

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Lean Security Expert
January 2, 2020

Cybersecurity for Small Businesses in Australia

Lean Security Expert
January 2, 2020
Cybersecurity for Small Businesses in Australia

In order to protect your business, you need to know what cybercriminals are looking for, how they attack your businesses, and devise a strategy to protect your business.

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Lean Security Expert
December 27, 2019

4 Ways Healthcare Application Security can be Improved

Lean Security Expert
December 27, 2019
4 Ways Healthcare Application Security can be Improved

Our experts at Lean Security have suggested a few ways healthcare applications can be improved.  

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Lean Security Expert
December 24, 2019

Mobile App Penetration Testing- Frequently Asked Questions

Lean Security Expert
December 24, 2019
Mobile App Penetration Testing- Frequently Asked Questions

Thinking of running a mobile app penetration test but still have questions? Our experts have answered some FAQs below.

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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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