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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
March 7, 2018

Why a Network Vulnerability Assessment is good for Business

Lean Security Expert
March 7, 2018
Why a Network Vulnerability Assessment is good for Business

Cyber attacks have cost companies and businesses a fair bit, both in terms of money and in terms of information/intellectual property according to international statistics.

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Lean Security Expert
March 3, 2018

Things to Look Out for When Hiring a Managed Network Security Service

Lean Security Expert
March 3, 2018
Things to Look Out for When Hiring a Managed Network Security Service

Given that cybercrime, network security breaches and organizational data penetration and theft can cost a pretty penny statistically speaking, it makes sense to stay protected.

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Lean Security Expert
February 28, 2018

Web Application Firewalls: Essentials and Basics

Lean Security Expert
February 28, 2018
Web Application Firewalls: Essentials and Basics

Since their initial appearance around the end of the 80’s, firewalls have really helped numerous organizations, businesses and individuals in the area of security.

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Lean Security Expert
February 26, 2018

5 Reasons To Invest In Online Or Cyber Security

Lean Security Expert
February 26, 2018
5 Reasons To Invest In Online Or Cyber Security

Everything around us is evolving. Medicine, engineering, and the nergy we use and how we see ourselves psycho-socially!

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Lean Security Expert
February 22, 2018

Cyber Security - Stat & Trends Infographic

Lean Security Expert
February 22, 2018

Many business, specially online business have cyber security issue to concern about. More business owners are now adapting safer measures to protect their data against intruders and malicious malware attacks.

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Lean Security Expert
February 19, 2018

Reasons Why You Need To Keep Your Business Data Safe - Infographic

Lean Security Expert
February 19, 2018
Reasons Why You Need To Keep Your Business Data Safe - Infographic

Identity theft, is the most common and top cyber crime. If you have business online and need to secure your online assets then read on why you need to keep your data safe

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Lean Security Expert
February 15, 2018

Reasons Why Mobile App Security Testing is Vital -Infographic

Lean Security Expert
February 15, 2018
Reasons Why Mobile App Security Testing is Vital -Infographic

n today's era, security has become the necessity. Online security for online assets is mandatory to secure online data and assets. Mobile application security is need and vital as well. Mobile app security prevent attack and the steps involved

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Lean Security Expert
February 1, 2018

Is Cloud Hosting Secure?

Lean Security Expert
February 1, 2018
Is Cloud Hosting Secure?

Cloud hosting or cloud computing is a great way to reduce costs and improve the overall efficiency of the IT function for businesses.

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Lean Security Expert
January 29, 2018

Protect Your Site from Vulnerabilities – Why You Should Have a Scan

Lean Security Expert
January 29, 2018

Having a professional looking business website, the right SEO procedures and an effective marketing strategy is only half the battle for any online business.

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Lean Security Expert
January 24, 2018

Predicting 2018 Cyber Security Solutions

Lean Security Expert
January 24, 2018
Predicting 2018 Cyber Security Solutions

2017 was pretty rough when it comes to cybercrimes. Experts predict that 2018 may be even worse. Cyber-attacks are becoming more advanced and sophisticated as the years go by, and prove to be devastating for some businesses

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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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