
Zscaler Internet Access (ZIA)
Robust Security with Some Whitelisting Challenges
Secure web access has protected users from phishing and has improved SOC investigation speed
What is our primary use case?
Zscaler Internet Access serves as our primary tool to secure employee outbound internet traffic and protect users from reaching malicious websites. We use it to protect users from web-based threats, enforce web access policies, block malicious websites, and monitor user internet activity through its proxy service, which provides secure internet access to employees in our organization.
A specific example of how I used Zscaler Internet Access to enforce web access policies involved blocking access to malicious websites identified in threat intelligence that users attempted to access through phishing emails with suspicious links. Zscaler Internet Access inspects web traffic and applies security policies before a connection is established between the user and the website. For instance, if a user clicks on a phishing link leading to a malicious website that might unknowingly download malware, Zscaler Internet Access identifies that website as malicious and blocks access immediately, preventing the user from reaching it.
Another use case I would mention regarding Zscaler Internet Access is the visibility it provides from a SOC perspective. As a SOC analyst, having visibility into users' web activity, blocked websites, policy violations, and potential threats is very useful during further investigations in the security field. It helps us maintain a consistent security posture.
How has it helped my organization?
Zscaler Internet Access has positively impacted our organization by improving our overall security posture, providing better visibility into the internet traffic our employees access, and protecting users from web-based threats such as phishing websites, malicious downloads, and suspicious sites. This has helped us remain safe from internet threats and improved support for remote users by consistently applying security policies without relying heavily on traditional on-premises security controls.
Zscaler Internet Access has reduced many security incidents for our SOC team. While I do not have exact metrics available, I can confirm that we have definitely seen a reduction in web-related security incidents, and it has also saved investigation time by allowing us to quickly review Zscaler Internet Access logs when a user reports suspicious websites or phishing links to determine whether the connection was allowed or blocked, thereby speeding up our investigation process.
What is most valuable?
The best features Zscaler Internet Access offers include URL filtering because it acts as a web gateway and allows us to write policy-based access control. The feature I use most is URL filtering, as it helps us control which websites users can access and block malicious or inappropriate sites.
URL filtering makes our day-to-day investigations easier from both security and operational perspectives. It automatically blocks access to known malicious websites and phishing or risky websites before users reach them, thereby reducing the number of security incidents we have to investigate.
What needs improvement?
Regarding improvements in Zscaler Internet Access, the admin console can sometimes be slow, particularly when navigating through reports or policy configuration. I also believe that troubleshooting tools and policy simulation features could be improved to make policy validation easier.
For how long have I used the solution?
I have been working as a SOC analyst for two years and ten months entirely within a SOC environment, having started my career in that role.
What do I think about the stability of the solution?
I have not faced any major outages or downtime with Zscaler Internet Access; it is stable in our environment, and I would rate it nine out of ten in terms of stability.
What do I think about the scalability of the solution?
Being cloud-native, Zscaler Internet Access scales very well and supports growing user numbers without the need for external hardware, and I would rate it nine out of ten for scalability.
How are customer service and support?
I would rate customer support at nine out of ten as they have provided responsive and knowledgeable assistance, and the documentation is quite good.
Which solution did I use previously and why did I switch?
We evaluated some traditional firewall-based web filtering solutions, but Zscaler Internet Access stood out because of its mature cloud architecture, scalability, and strong security controls. I am not certain about the specific vendors we evaluated, but we did research other tools, and Zscaler Internet Access stood out because of its features.
How was the initial setup?
My advice to others looking into using Zscaler Internet Access is that the tool is good overall, but I recommend spending time understanding policy design and user requirements before deployment. Proper planning and testing of the policies and controls help reduce unnecessary user impact and make the rollout much smoother.
What about the implementation team?
We do not have any business relationship with Zscaler aside from being clients who purchased the product.
What was our ROI?
I do not have exact numbers regarding the return on investment, but the main returns have come from improved visibility into user internet access, reduced risk from web-based threats, and simplified management that has decreased dependency on our analysts and traditional on-premises security devices.
What's my experience with pricing, setup cost, and licensing?
We have not purchased Zscaler Internet Access through the AWS Marketplace; the licensing process was handled separately by our financial and management team.
Which other solutions did I evaluate?
We evaluated some traditional firewall-based web filtering solutions, but Zscaler Internet Access stood out because of its mature cloud architecture, scalability, and strong security controls.
What other advice do I have?
A specific example of how I used Zscaler Internet Access to enforce web access policies involved blocking access to malicious websites found in threat intelligence that users attempted to access through phishing emails with suspicious links. Zscaler Internet Access inspects web traffic and applies security policies before a connection is established between the user and the website. For instance, if a user clicks on a phishing link leading to a malicious website that might unknowingly download malware, Zscaler Internet Access identifies that website as malicious and blocks access immediately, preventing the user from reaching it.
Another use case I would mention regarding Zscaler Internet Access is the visibility it provides from a SOC perspective. As a SOC analyst, having visibility into users' web activity, blocked websites, policy violations, and potential threats is very useful during further investigations in the security field. It helps us maintain a consistent security posture. I would rate this product nine out of ten overall.