Essential Eight: Patch Operating Systems

Essential 8 #7: Patch Operating Systems

Keep the Foundation of Your Security Strong

I know you're looking forward to the weekend, but there is still time to get your house in order. Let’s focus on #6 of the Essential 8, Patch Operating Systems. We've already talked about Application Control, which acts as a strict bouncer at the door, only letting in approved software. Now, we're going even deeper – we're talking about maintaining the very foundation of your security: your operating systems.

What is Operating System Patching, and Why is it So Important?

Your operating system (OS) is the core software that runs your computers, servers, and mobile devices. It's the foundation upon which everything else is built. And just like your house needs a solid foundation, your OS needs to be regularly maintained and updated.

Patching your operating system means applying updates released by the OS vendor (like Microsoft, Apple, or Google). These patches often contain critical security fixes that address vulnerabilities – weaknesses that cybercriminals can exploit to gain access to your systems.

Why is this so important? Because unpatched operating systems are like buildings with cracks in the foundation – they're vulnerable to attack. Cybercriminals are constantly scanning for systems with known vulnerabilities, and they're quick to exploit them. If your OS isn't patched, you're leaving the door wide open for malware, ransomware, data breaches, and a whole host of other problems.

Types of Patches:

There are generally three main types of patches:

• Security Patches: These are the most critical. They fix security vulnerabilities that could be exploited by attackers.

• Bug Fixes: These address non-security-related issues that can cause crashes or other problems.

• Feature Updates: These add new features or functionality to the OS. While not always security-related, they often include security improvements.

Patching Frequency: Don't Delay!

When it comes to security patches, speed is of the essence. The Australian Cyber Security Centre (ACSC) recommends patching "extreme risk" vulnerabilities within 48 hours. That's because cybercriminals are often quick to develop exploits for newly discovered vulnerabilities. The longer you wait to patch, the greater the risk.

How to Patch Your Operating Systems:

Thankfully, patching your operating systems is usually a straightforward process:

• Enable Automatic Updates: Most modern operating systems have an automatic update feature. Make sure this is enabled so you receive the latest patches as soon as they're released.

• Use Centralised Patch Management: For organisations with multiple devices, a centralised patch management system like Windows Server Update Services (WSUS) can help streamline the patching process.

• Manual Patching: In some cases, you may need to manually download and install patches. This is typically only necessary for older systems or specialised software.

Challenges of Patching:

While patching is essential, it can sometimes present challenges:

• Testing: It's important to test patches in a non-production environment before deploying them to all your systems. This helps ensure they don't cause compatibility issues with your existing software.

• Downtime: Applying patches often requires restarting systems, which can lead to downtime. Careful planning and scheduling can help minimise disruption.

How Canzuki Can Help:

Managing patches across a network can be time-consuming and complex. Canzuki can help you:

• Develop a Patch Management Policy: We'll help you create a policy that outlines your patching procedures, including testing and deployment schedules.

• Implement Automated Patch Management Solutions: We can set up systems to automatically download and deploy patches to your devices.

• Monitor Patching Status: We'll keep track of which systems have been patched and which ones still need updates.

• Provide Support and Troubleshooting: We're here to help with any patching-related issues that arise.

Don't leave your operating systems vulnerable to attack. Contact Canzuki today to learn more about how we can help you implement a robust patch management strategy.

Ready to strengthen the foundation of your security? Call us at +61 2 7227 9388 or email hello@canzuki.com.

Patching your operating systems is a fundamental security practice that should never be overlooked. It's like maintaining the foundation of your digital house – if the foundation is weak, the whole structure is at risk. Stay on top of those patches!

We've laughed, we've cried, we've patched our operating systems... and tomorrow, our Essential Eight journey comes to an end. Join me for the grand finale: #8, Regular Backups. Until then, stay vigilant, stay secure, and keep those operating systems patched! (I'm going to miss you guys!)