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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 28, 2020

4 Steps To Safeguard Against Your Malware

Lean Security Expert
August 28, 2020
4 Steps To Safeguard Against Your Malware

Using encryption, implementing network security upgrades, installing cybersecurity software and educating employees are effective ways to prevent malware attacks

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Lean Security Expert
August 13, 2020

Why Your Customer Data Should Be Encrypted (Infographic)

Lean Security Expert
August 13, 2020

Insecure cryptographic storage allows hackers to easily confidential data that is why your customer data should be encrypted

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Lean Security Expert
August 12, 2020

5 Cyber Security Risks of Working from Home

Lean Security Expert
August 12, 2020
5 Cyber Security Risks of Working from Home

Here, we’ve outlined five cybersecurity risks you need to keep in mind and address as you and your business shift to work from home:

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Lean Security Expert
August 7, 2020

Contact Tracing: How Does it Work?

Lean Security Expert
August 7, 2020
Contact Tracing: How Does it Work?

Read all about how Contact Tracing Work?

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Lean Security Expert
July 30, 2020

The Perks of a Pen Test

Lean Security Expert
July 30, 2020
The Perks of a Pen Test

The penetration testing services provided by us offer comprehensive solutions for all your cyber security concerns. Here’s how pen tests can protect your app and systems better:

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Lean Security Expert
July 15, 2020

DDOS ATTACK

Lean Security Expert
July 15, 2020

Read all about DDOS attack

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Lean Security Expert
July 13, 2020

The Importance of Encryption for Storing Customer Data

Lean Security Expert
July 13, 2020
The Importance of Encryption for Storing Customer Data

The process of data encryption has become a vital component of system security strategy.

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Lean Security Expert
July 10, 2020

3 Cybersecurity Tips for Remote Workers to Protect Sensitive Company Data

Lean Security Expert
July 10, 2020
3 Cybersecurity Tips for Remote Workers to Protect Sensitive Company Data

The following are some helpful tips that employees can use to protect themselves against data breaches:

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Lean Security Expert
July 3, 2020

Understanding the Art of Penetration Testing: FAQs Answered

Lean Security Expert
July 3, 2020
Understanding the Art of Penetration Testing: FAQs Answered

In this blog, we’ve answered a few of the most frequently asked questions about Penetration Testing. Have a look!

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Lean Security Expert
June 30, 2020

Top Cybersecurity Challenges of Managing a Remote Workforce

Lean Security Expert
June 30, 2020
Top Cybersecurity Challenges of Managing a Remote Workforce

Before you set up your work desk in your house, take a look at a few cybersecurity challenges that you and other remote workers should look out for

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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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