COURTESY NOTICE: Log4j – The Most Severe Security Threat Ever is Affecting the Whole Internet. Here’s What You Need to Know…


There is a major security alert that is affecting the whole of the internet right now. Security researchers have called it one of the most severe vulnerabilities the world has ever seen.

If you haven’t heard much about it, don’t be surprised. Unlike most cyber security alerts, this vulnerability is not affecting the normal computers that you use in your business. Instead, it is affecting the servers that power much of the web.

There are some small security measures that you can take to keep you and your team safe online. We will come to those in a minute. We are writing this to give you a simple guide to what has happened and what it means, without any baffling tech speak.

Let’s start at the beginning. At the end of last week, a problem was noticed in the highly popular game Minecraft. It quickly became apparent that the impact was far larger than just affecting a game. In fact, it has affected millions of web applications, including Apple’s iCloud.

The problem is a security flaw in a piece of software called Log4j. This software is designed to keep a record of everything that has happened within applications. This record helps developers track down problems and fix them.

Log4j is what is known as open-source software. It was developed for free by coders in their spare time and anyone can use it. Rather than write their own logging software, millions of developers have used it as it is a very efficient way to create new applications.

Unfortunately, with Log4j being so widely used, it means that the security flaw, Log4Shell, is now affecting millions of pieces of software, running on millions of machines. So, while it is not affecting the normal computers you use in your business, it is affecting many of the services you use.

The flaw allows hackers to run any code they would like on affected servers. They could steal data, delete information, or run other software. Experts say this flaw makes it so easy to run malicious code, virtually anyone could do it.

So, what happens from here? Luckily, the fix to the problem was developed quickly. It was released in a patch – like a Band-Aid to fix the bug. The real issue is updating all the software that has been using Log4j. It is so widely used that it is likely to take several months for the patch to be universally applied. Experts even believe that there will be some web applications that, for whatever reason, are never updated.

This is where it starts to affect you more directly. Here are a few of the risks to watch for.

  1. We are likely to see a lot of website hacks happen over the next few months.
  2. Some ecommerce sites that didn’t apply the patch quickly may find hackers have stolen their customers’ card numbers or other details.
  3. The risk of identity theft shoots up.
  4. Other websites you visit may try to secretly download malware – malicious software – onto your computer.

Here are some basic security measures you can take to stay safe online:

  • Always use long, randomly generated passwords
  • Never use a password for more than one service
  • Use a password manager to remember passwords for you
  • Keep a closer watch on your card statements for the next few months
  • Make sure you keep your business’s computers up-to-date and apply all patches to software.

If we can help reassure you that your business is secure, especially as we approach the holidays, feel free to book a free, no obligation 15-minute consultation at


Published with permission from Your Tech Updates.

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