A DNS firewall is a layer of protection meant to moderate and filter DNS traffic and block access to malicious websites. With the use of DNS response policies and threat intelligence, a DNS firewall can reroute or block any suspicious links or websites.
DNS firewalls also function using threat intelligence and DNS response policy zones. These two can effectively block malicious websites packed with viruses or malware.
A DNS firewall can play an integral role within a more comprehensive cybersecurity package, helping catch any threats the other tools may have missed.
Pros of a DNS firewall
A DNS firewall can block the following threats:
- Phishing: Phishing attacks steal private data and can also harm devices with malware.
- Adware: Adware is any malware designed to allow attackers to send intrusive ads.
- IP hijacking: This threat refers to a cyberattack where an attacker can monitor, read and modify transmitted data packets and send false requests.
- Spyware: This malware can monitor or spy on the target and can also steal data.
- Botnet: This malware gets used to conduct DDoS attacks, send spam, and steal data.
- Ransomware: This is a kind of cyberattack where the attackers can encrypt an entire library of files and even whole devices and deny the user access to them.
