Zero-Day attacks

Now that we have a better understanding of what a Zero-Day attack is, and who the perpetrators are, it's crucial to look at what you can do to protect yourself effectively. This will be the subject of our next article. Faced with the threat of attacks.

At Zero Day, it is imperative for individuals and companies to put in place robust protection strategies tailored to the risks involved. Obviously, you don't transport gold bars in a wheelbarrow, or carrots in an armored van. So it's crucial to tailor protective measures to the risks involved. Let's take a closer look at the measures you need to adopt to counter Zero-Day attacks. By adopting advanced cybersecurity practices and relying on specialized tools, it is possible to significantly reduce the risks of exploiting these Zero-Day vulnerabilities. This introduction will highlight some of the best practices to follow to guard against these attacks, ensuring the security of sensitive systems and data.

How can you protect yourself against Zero-Day attacks?

To protect themselves against Zero-Day attacks and ensure the security of their computers and data, individuals and businesses alike should follow cybersecurity best practices, including:

Humans are the weak link

Train your company's users. Many zero-day attacks exploit human error. Training employees and users in the best practices and application of the security measures contained in your security policy will help protect them online and secure the company against Zero-Day exploits and other digital threats.

Use a firewall with sandboxing option

A firewall plays an essential role in protecting your system from external threats. By enabling the sandboxing option on your firewall, unknown malicious code will be isolated in a confined environment and then run on a network that mimics the user's operating environment. The sandbox is designed to prevent threats from entering the real network, and is used to inspect untested or untrusted code. In this way, sandboxing allows code to be relegated to a test environment so that it does not infect or damage host machines or operating systems. As the name suggests, this isolated test environment functions as a kind of "sandbox", where you can play with different variables of a ZeroDay code and see how the program performs. Most security vendors such as AR@BASE, Fortinet, Check Point, Stormshield, etc. offer Sandboxing solutions.

Keep all your software and operating systems up to date

Vendors include security patches in updates to cover the latest identified vulnerabilities. Updated tools such as WSUS, SCCM and MCEM in Windows environments, SpaceWalk, Foreman, Pulp, Landscape, Uyuni and Red Hat Satellite will reinforce your security update policy.

The more non-validated applications you install, the higher the risk of vulnerabilities. You can reduce these risks by using only the applications you need.

Prohibit privilege elevation on your PCs

The more rights end-users have to install applications on their PCs, the greater the risk of exposure to zero-day vulnerabilities. You can reduce these risks by prohibiting high-privilege access to user PCs and servers via GPOs and/or hardening.

Use an Antivirus with VPN function on your User workstations

A VPN plays an essential role in protecting your network from the Internet, by encrypting flows in a secure channel and protecting your public address from the outside world. By activating a VPN-enabled antivirus on your user workstations, you can considerably reduce the propagation of a zero-day attack on your network.

Conclusion