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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
January 25, 2019

3 Safety Concerns With Cloud Data Storage

Lean Security Expert
January 25, 2019
3 Safety Concerns With Cloud Data Storage

Here are all the safety concerns that cloud data storage addresses to give consumers a safe place to store data.

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Lean Security Expert
January 3, 2019

Understanding the Importance of Cloud Security

Lean Security Expert
January 3, 2019
Understanding the Importance of Cloud Security

In this blog, we highlight a few key reasons why having cloud-based security is important for your organization.

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Lean Security Expert
December 31, 2018

The Differences between Penetration Tests, Audits, and Security Assessments

Lean Security Expert
December 31, 2018
The Differences between Penetration Tests, Audits, and Security Assessments

In this blog, we highlight the main differences between penetration tests, audits, and security assessments.

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Lean Security Expert
December 27, 2018

Simple Security Vulnerabilities Putting Your Business at Risk

Lean Security Expert
December 27, 2018
Simple Security Vulnerabilities Putting Your Business at Risk

In this blog, we take a look at a few security vulnerabilities your business should avoid.

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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, 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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