What is a zero-day exploit?

A zero-day exploit is a type of computer security exploit in which the attacker takes advantage of a previously unknown vulnerability. This term is usually used in reference to attacks that target software or hardware, but it can also refer to attacks that target humans.

A zero-day exploit is so called because the software or hardware vendor has had zero days to patch the security hole. This gives the attacker a significant advantage, as the victim is unaware that their system is vulnerable. In some cases, the attacker may be the only person who knows about the exploit.

Zero-day exploits are often used in targeted attacks, as they are more likely to be successful against a specific individual or organization. The Stuxnet worm, which was used to target Iranian nuclear facilities, is one example of a zero-day exploit in the wild.

Another example of a zero-day exploit is the Heartbleed bug, which affected the popular OpenSSL cryptography software. This exploit allowed attackers to steal information from memory, including sensitive data like passwords and private keys. The Heartbleed bug went undetected for over two years, and it is estimated that over 500,000 websites were affected by the exploit.

Zero-day exploits are notoriously difficult to defend against, as they target unknown vulnerabilities. It is important to keep systems up-to-date with the latest security patches, as this will help to close any known holes that could be exploited. In addition, security measures like firewalls and intrusion detection systems can help to defend against zero-day attacks.

There are many different types of firewalls available today. Which one is best for my company?

This is a difficult question to answer as it depends on the specific needs of your company. Some factors you will need to consider include:

-What is your budget?
-What is the size of your network?
-What is the level of security you require?
-What type of traffic do you need to allow through your firewall?
-Do you need to allow remote access to your network?

Once you have considered these factors, you can start to narrow down your choices. Some popular firewall choices include:

-Palo Alto Networks
-Cisco
-Juniper
-Fortinet

Each of these firewalls has its own strengths and weaknesses, so you will need to decide which is best for your company.

Visit malwarezero.org to learn more about firewall. Disclaimer: We used this website as a reference for this blog post.