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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 3, 2021

Common Web Security Vulnerabilities and How to Fix Them

Lean Security Expert
April 3, 2021
Common Web Security Vulnerabilities and How to Fix Them

Many people are unaware of some common security vulnerabilities in their network. Read on to find out more:

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Lean Security Expert
March 9, 2021

How to Improve Your Security Plan

Lean Security Expert
March 9, 2021

Protecting data from damage is extremely important for a business. Here’s how you can create a strong security plan for your business.

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Lean Security Expert
February 8, 2021

Mobile Apps Security - Risks You Should Be Aware of

Lean Security Expert
February 8, 2021

Following are the mobile apps security risks you should be aware of.

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Lean Security Expert
February 3, 2021

How to Formulate a Stronger Security Plan for Your Business?

Lean Security Expert
February 3, 2021
How to Formulate a Stronger Security Plan for Your Business?

Once you understand your system's vulnerabilities, you can decide what security measures and methods you must adopt to protect your data from any potential threats

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Lean Security Expert
January 28, 2021

How Hackers Can Penetrate Your Business Networks?

Lean Security Expert
January 28, 2021
How Hackers Can Penetrate Your Business Networks?

This blog post will highlight how cybercriminals attack businesses.

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Lean Security Expert
January 20, 2021

Present Your Small Business with the Gift of Cyber Security

Lean Security Expert
January 20, 2021

Present Your Small Business with the Gift of Cyber Security

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Lean Security Expert
January 15, 2021

What Kind Of Penetration Test Is The Right Fit For Your Business?

Lean Security Expert
January 15, 2021
What Kind Of Penetration Test Is The Right Fit For Your Business?

Selecting the right type of penetration test to assess your organization’s cyber-security needs and vulnerabilities is important. Let Lean Security tell you how.

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Lean Security Expert
January 13, 2021

The Basics of Web Application Pen Testing

Lean Security Expert
January 13, 2021
The Basics of Web Application Pen Testing

A penetration testing service provider can help you uncover vulnerabilities in your web application and prevent cyber-attacks. Read on to find out how it is performed.

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Lean Security Expert
November 30, 2020

Top 4 Threats Online Gamers Need to be Wary Of (infographics)

Lean Security Expert
November 30, 2020

Here are the threats online gamers should be war of

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Lean Security Expert
November 12, 2020

Security Risk Assessment - Why Do You Need It

Lean Security Expert
November 12, 2020
Security Risk Assessment - Why Do You Need It

Read all about why you need security risk assessment

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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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