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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
January 11, 2026
Lean Security Expert
The ToolShell Crisis: Why Your SharePoint ...

The Australian Cyber Security Centre has issued urgent warnings about actively exploited vulnerabilities in Microsoft SharePoint Server (CVE-2025-53770) that enable unauthenticated remote code execution. With Chinese state-aligned actors and ransomware groups already compromising Australian organisations, this threat represents an immediate and severe risk to business-critical data and infrastructure.

The ToolShell Crisis: Why Your SharePoint Server Is a Ticking Time Bomb
December 27, 2025
Lean Security Expert
Why Long-Lived Cloud Credentials Are Your ...

Across AWS, Google Cloud, and Microsoft Azure environments in Australia and globally, 59% of IAM users maintain access keys that have never expired—credentials that have been active for more than one year. These long-lived credentials represent a silent but catastrophic vulnerability in your cloud infrastructure. This blog explores why long-lived credentials have become the primary attack vector for identity-based breaches, how red teams exploit them during penetration tests, and what you must do today to eliminate this ticking time bomb.

Why Long-Lived Cloud Credentials Are Your Biggest Identity Risk in 2025
December 21, 2025
Lean Security Expert
Fortinet "Ghost Logins": How Authentication ...

Critical authentication bypass vulnerabilities in Fortinet FortiGate and related products (CVE-2025-59718 and CVE-2025-59719) are now under active attack, allowing "ghost" SSO logins that completely sidestep normal controls and logs. For Australian organisations, this is more than a VPN or firewall problem – it is a board-level exposure that directly tests whether your external penetration testing, internal penetration testing, and red team assessment services are capable of simulating SSO abuse, identity takeovers, and lateral movement across hybrid networks.

Fortinet "Ghost Logins": How Authentication Bypass Attacks Expose Gaps in Your Penetration Testing Strategy
December 6, 2025
Lean Security Expert
React2Shell: A CISO’s Guide to CVE-2025-55182

A new security flaw called React2Shell (CVE-2025-55182) puts Australian businesses at extreme risk. It has a severity score of CVSS 10.0, which is the highest possible rating. This flaw lets hackers take full control of your servers without needing a password. It affects the popular tools React and Next.js.

React2Shell: A CISO’s Guide to CVE-2025-55182
November 26, 2025
Lean Security Expert
SessionReaper & BFCM: Why Penetration ...

A critical vulnerability in Adobe Commerce and Magento (CVE-2025-54236), dubbed "SessionReaper," is being ruthlessly exploited by threat actors using AI-driven tools to automate attacks at machine speed. With the Australian holiday trading season in full swing, this unauthenticated remote code execution (RCE) flaw poses an immediate existential threat to retail and B2B organizations. This alert outlines the mechanics of the attack, the role of AI in its weaponization, and the urgent defensive actions required to prevent a catastrophic data breach.

SessionReaper & BFCM: Why Penetration Testing Services Are Critical (CVE-2025-54236)
Lean Security Expert
April 9, 2019

Steps Involved In Web Application Vulnerability Assessment

Lean Security Expert
April 9, 2019
Steps Involved In Web Application Vulnerability Assessment

Here are the steps involved in web application vulnerability assessment.

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Lean Security Expert
April 4, 2019

The Benefits Of Source Code Analysis

Lean Security Expert
April 4, 2019
The Benefits Of Source Code Analysis

A source code is a set of instructions, comments, and declarations. Let’s see what are the benefits of source code analysis.

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Lean Security Expert
March 30, 2019

Network Vulnerability Assessment: A Guide

Lean Security Expert
March 30, 2019
Network Vulnerability Assessment: A Guide

Ongoing network vulnerability assessments are used to identify defects in an organization’s network prior to security breaches. Check this useful guide.

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Lean Security Expert
March 26, 2019

5 Common Types Of Malware

Lean Security Expert
March 26, 2019
5 Common Types Of Malware

To protect your business from cyber threats, it’s important that you know what to look out for. Here are some common malware that can cause harm to your system.

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Lean Security Expert
March 8, 2019

Ways To Keep Your Business Information Secure

Lean Security Expert
March 8, 2019
Ways To Keep Your Business Information Secure

From identity theft to loss of official data, cyber threats can wreck a flourishing business. Therefore it’s crucial to secure your business before you smell trouble. Here are a few suggestions on how to do it.

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Lean Security Expert
March 5, 2019

Why Network Security Is Important For Your Business (Infographic)

Lean Security Expert
March 5, 2019
Why Network Security Is Important For Your Business (Infographic)

Network vulnerability assessment should be performed in order to keep online business belong to any niche safe and secure.

Read more about why network security is important for your business.

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Lean Security Expert
March 1, 2019

4 Types Of Cyber Security Threats

Lean Security Expert
March 1, 2019
4 Types Of Cyber Security Threats

Small and big corporations are in dire need of learnign and tutoring their employees about the types of cyber thrreats so they can be detected at the earlier stage. Here are 4 types of cyber threats that you must know.

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Lean Security Expert
February 26, 2019

4 Most Notorious Australian Hackers

Lean Security Expert
February 26, 2019
4 Most Notorious Australian Hackers

Here are a few cases of Australian hacking geniuses who still couldn’t outsmart the authorities.

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Lean Security Expert
February 1, 2019

4 Effective Strategies to Protect Web Applications | Infographic

Lean Security Expert
February 1, 2019
4 Effective Strategies to Protect Web Applications | Infographic

Let’s take a look at 4 effective strategies to protect your web applications.

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Lean Security Expert
January 30, 2019

E-Commerce Security Threat -What Do You Need to Know | Infographic

Lean Security Expert
January 30, 2019
E-Commerce Security Threat -What Do You Need to Know | Infographic

Read what do you need to know about E-commerce security threats

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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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