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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
August 6, 2019

Web Application Security Testing: Focusing on Certain Areas of Web App

Lean Security Expert
August 6, 2019
Web Application Security Testing: Focusing on Certain Areas of Web App

Here are some important aspects that should be considered before you perform a security test on your web application.

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Lean Security Expert
August 3, 2019

How to Keep Your Website Safe from a DDoS Attack

Lean Security Expert
August 3, 2019
How to Keep Your Website Safe from a DDoS Attack

If you consider your website vulnerable to such attacks, it’s time you look into some preventative measures. Here are a few tips to prevent your website from a DDoS attack.

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Lean Security Expert
July 31, 2019

Mobile App Security Tips to Avoid Cyber Threats

Lean Security Expert
July 31, 2019
Mobile App Security Tips to Avoid Cyber Threats

Take a look at these security tips to avoid cyber threats.

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Lean Security Expert
July 29, 2019

Five Reasons Your Business Needs The Most Secure Data Protection Available

Lean Security Expert
July 29, 2019
Five Reasons Your Business Needs The Most Secure Data Protection Available

5 reasons why your business needs the most secure data protection available.

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Lean Security Expert
July 29, 2019

Victim of a Vicious Malware Attack? Here’s What You Need to Do

Lean Security Expert
July 29, 2019
Victim of a Vicious Malware Attack? Here’s What You Need to Do

Here’s what you need to do to get rid of vicious malware attacks.

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Lean Security Expert
July 24, 2019

3 Potential Security Risks of Online Gaming

Lean Security Expert
July 24, 2019
3 Potential Security Risks of Online Gaming

We’ve prepared a comprehensive list of these associated risks to alarm you of the dangers that lurk around when you’re firing arms in Call of Duty.

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Lean Security Expert
July 20, 2019

4 Security Benefits of Cloud Computing

Lean Security Expert
July 20, 2019
4 Security Benefits of Cloud Computing

Here are the top 4 security benefits of cloud computing

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Lean Security Expert
July 17, 2019

Why You Need a Strong Cybersecurity Solution

Lean Security Expert
July 17, 2019
Why You Need a Strong Cybersecurity Solution

Let’s take a look at some reasons why your business needs the very best cybersecurity solution.

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Lean Security Expert
June 10, 2019

Static vs. Dynamic Code Analysis: Everything You Need to Know

Lean Security Expert
June 10, 2019
Static vs. Dynamic Code Analysis: Everything You Need to Know

Security development lifecycle (SDL) requires crafting a carefully constructed security plan, as well as code analysis—of both static and dynamic code. What do those terms mean and how are they both important? Let’s take a look. 

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Lean Security Expert
June 2, 2019

Why You Should Include QA in Your Web App Development Process

Lean Security Expert
June 2, 2019
Why You Should Include QA in Your Web App Development Process

I’s extremely important for every business owner to make sure that their web app is up to date.

How can you ensure that? The answer to this question is simple: through quality assurance.

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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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