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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
June 27, 2020

Penetration Testing Can Prevent Insider Threats—Here’s Everything You Need to Know

Lean Security Expert
June 27, 2020
Penetration Testing Can Prevent Insider Threats—Here’s Everything You Need to Know

And while you can do everything in your power to protect the company from external threats, it’s harder when someone’s trying to destroy it from the inside.

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Lean Security Expert
June 25, 2020

3 Benefits of Real-Time Asset Tracking in Manufacturing

Lean Security Expert
June 25, 2020
3 Benefits of Real-Time Asset Tracking in Manufacturing

The market for real-time location systems is growing as more and more manufacturers invest in them, so they are provided with an overview of their operations

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Lean Security Expert
June 20, 2020

Securing Banking Applications 101: Mobile Money Safety

Lean Security Expert
June 20, 2020
Securing Banking Applications 101: Mobile Money Safety

Here’s how users can remain secure on mobile banking applications.

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Lean Security Expert
June 15, 2020

Who Is External Network Penetration Testing Test For?

Lean Security Expert
June 15, 2020
Who Is External Network Penetration Testing Test For?

In this blog, we’ll be focusing on external network penetration testing, in particular, and who should opt for it.

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Lean Security Expert
June 10, 2020

Why Is Web Service Penetration Testing Beneficial For Your Business?

Lean Security Expert
June 10, 2020
Why Is Web Service Penetration Testing Beneficial For Your Business?

In this blog, we’ll discuss how web service penetration testing can be beneficial to your business.

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Lean Security Expert
June 5, 2020

Your Ultimate Cybersecurity Checklist for Working from Home

Lean Security Expert
June 5, 2020
Your Ultimate Cybersecurity Checklist for Working from Home

We’ve compiled this useful cybersecurity checklist so that people working from home can take proper measures to keep them safe from cyberattacks.

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Lean Security Expert
May 30, 2020

Top 4 Threats Online Gamers Need to Be Wary of

Lean Security Expert
May 30, 2020
Top 4 Threats Online Gamers Need to Be Wary of

Here are some of the top cybersecurity threats online gamers need to be wary of.

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Lean Security Expert
May 25, 2020

The Importance of Mobile Application Penetration Testing

Lean Security Expert
May 25, 2020
The Importance of Mobile Application Penetration Testing

Here, we’ll discuss why mobile application penetration testing is crucial for enterprises that have apps.

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Lean Security Expert
May 20, 2020

4 Ways to Prevent URL Open Redirect Attacks

Lean Security Expert
May 20, 2020
4 Ways to Prevent URL Open Redirect Attacks

In this blog post, we’ll go over what open redirect attacks are, why they’re dangerous, and what you can do to prevent them.

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Lean Security Expert
May 19, 2020

Cloud Security & Threats

Lean Security Expert
May 19, 2020
Cloud Security & Threats

Let’s take a look at cloud security and 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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