[2023 July Security Monthly Express] How Zyxel keeps your IP surveillance devices secured

zyxel_Lin Posts: 73  Zyxel Employee
First Anniversary Friend Collector
edited July 2023 in Security Highlight

In the era of the Internet of Things, the security issues of networked devices are constantly being emphasized. Among them, the security issues of network cameras (IP CAM) are one of the most concerned devices. While enterprise networks may be a primary target due to their larger scale and potential impact, small and medium-sized businesses (SMBs) and even individual users are also at risk when it comes to the security issues of network cameras.

In recent years, there have been instances where network cameras were exploited and used as part of botnets to launch DDoS attacks.The primary reason network cameras can be vulnerable to exploitation is due to inadequate security practices by users or manufacturers. Some common security issues include:

  1. Default credentials: Many network cameras are shipped with default usernames and passwords, which are often left unchanged by users. Attackers can easily identify these devices and gain unauthorized access if default credentials are not modified.
  2. Outdated firmware: Manufacturers release firmware updates to address security vulnerabilities and improve device performance. Failure to keep cameras up to date with the latest firmware makes them susceptible to known exploits.
  3. Weak authentication protocols: Weak or easily guessable passwords can be exploited by attackers to gain unauthorized access to the cameras.
  4. Lack of encryption: Insufficient use of encryption protocols can expose network traffic and enable attackers to intercept or manipulate the data.

While security measures are an important security component, they should be used in conjunction with a firewall to provide comprehensive protection. Firewalls can play a significant role in preventing and defending against security issues related to network cameras, including the risk of becoming accomplices in DDoS attacks.

How does Zyxel solutions help

Zyxel firewalls act as a barrier between the internal network and the external world, allowing administrators to control incoming and outgoing network traffic. By configuring firewall rules, you can specify which devices or systems are allowed to access the network cameras. This helps prevent unauthorized access and reduces the risk of compromise.

Our firewalls also have the capability to apply filters based on various criteria, such as IP addresses, ports, or protocols. This filtering capability allows the firewall to detect and block suspicious or malicious traffic targeting the network cameras. Here's how Zyxel USG FLEX firewalls series can help:

USG FLEX 50 with

CF Pack

USG FLEX 100 with

UTM Security Pack

Hide from internet crawlers to prevent public discovery.



Prohibit login attempts or unauthorized access (to prevent DoS or brute force attacks).



Ransomware and Malware protection

(Block communication to malicious peers.)


Block any communication from known Command & Control peers.


Surveillance cameras have played a vital role in monitoring and safeguarding lives and properties. However, the security of these devices themselves is often neglected. In fact, many IP cameras have become victims of intrusion and hacking, affecting both enterprises and SMBs. By implementing a firewall, the risk of new vulnerabilities can be significantly reduced quickly.