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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 22, 2018

Avoiding the Major Data Loss Pitfalls

Lean Security Expert
December 22, 2018
Avoiding the Major Data Loss Pitfalls

In this blog, we take a look at the major data loss pitfalls and how to avoid them.

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Lean Security Expert
December 18, 2018

3 Major Penetration Testing Techniques

Lean Security Expert
December 18, 2018
3 Major Penetration Testing Techniques

Here are the 3 major penetration testing techniques used by pro testers.

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Lean Security Expert
December 14, 2018

Application Security: Why It’s Important

Lean Security Expert
December 14, 2018
Application Security: Why It’s Important

This blog post will bring light to the importance of web application security.

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Lean Security Expert
December 12, 2018

How Malware Can Impact Your Business Website

Lean Security Expert
December 12, 2018
How Malware Can Impact Your Business Website

Malware is one of the major security threats that plague the online operations of organizations. Read how malware can affect your organization’s website.

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Lean Security Expert
December 6, 2018

DDoS Attacks: All You Need to Know

Lean Security Expert
December 6, 2018
DDoS Attacks: All You Need to Know

Over the course of this blog, we’ll discuss what a DDoS attack is and the dangers it poses

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Lean Security Expert
November 28, 2018

Cyber Security- What do the Number Say [Infographic]

Lean Security Expert
November 28, 2018
Cyber Security- What do the Number Say [Infographic]

As the world is becoming more digitalized, it has become easier for the cyber criminals to pave their way into the mobiles and computers to extract confidential data.

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Lean Security Expert
October 31, 2018

Here's How to Stop Your Network From Being Hacked

Lean Security Expert
October 31, 2018
Here's How to Stop Your Network From Being Hacked
Don’t want you network to be hacked? Here’s how to stop your network from being hacked

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Lean Security Expert
October 29, 2018

Penetration Testing Trends You Need To Get Behind

Lean Security Expert
October 29, 2018
Penetration Testing Trends You Need To Get Behind

While there may be many upsides of technology, a prominent downside is the risk of cybercrimes. Cybercrimes are a major concern for businesses that operate online. Read which penetration testing trends you need to get behind.

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Lean Security Expert
October 25, 2018

5 Ways Penetration Testing Can Help Your Business

Lean Security Expert
October 25, 2018
5 Ways Penetration Testing Can Help Your Business

The era of technology has contributed in expanding the business via web and mobile applications. Read what are the 5 ways penetration testing can help your business.

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Lean Security Expert
October 9, 2018

Why Timely Data Breach Detection Is Key

Lean Security Expert
October 9, 2018
Why Timely Data Breach Detection Is Key

The process of data breach detection involves collecting, analysing and interpreting incoming web traffic to spot potential network threats to confidential company and client 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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