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this post was submitted on 23 Oct 2023
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ZScaler. It's supposedly a security tool meant to keep me from going to bad websites. The problem is that I'm a developer and the "bad website" definition is overly broad.
For example, they've been threatening to block PHP.Net for being malicious in some way. (They refuse to say how.) Now, I know a lot of people like to joke about PHP, but if you need to develop with it, PHP.Net is a great resource to see what function does what. They're planning on blocking the reference part as well as the software downloads.
I've also been learning Spring Boot for development as it's our standard tool. Except, I can't build a new application. Why not? Doing so requires VSCode downloading some resources and - you guessed it - ZScaler blocks this!
They've "increased security" so much that I can't do my job unless ZScaler is temporarily disabled.
Also, zScaler breaks SSL. Every single piece of network traffic is open for them to read. Anyone who introduces zscaler should be fired and/or shot on sight. It's garbage at best and extremely dangerous at worst.
Zscaler being the middleman is somewhat the point for security/IT teams using that feature.
And it's a horrible point. You're opening up your entire external network traffic to a third party, whose infrastructure isn't even deployed or controllable in any form by you.
The idea being that it's similar to using other enterprise solutions, many of which do the same things now.
Zscaler does have lesser settings too, at it's most basic it can do split tunneling for internal services at an enterprise level and easy user management. Which is a huge plus.
I'd also like to point out that the entire Internet is a third party you have no control over which you open your external traffic to everyday.
The bigger deal would be the internal network, which is also a valid argument.
Not really. Proper TLS enables relatively secure E2E encryption, not perfect, but pretty good. Adding Zscaler means, that my entire outgoing traffic runs over one point. So one single incident in one single provider basically opens up all of my communication. And given that so many large orgs are customers of ZScaler, this company pretty much has a target on its back.
Additionally: I'm in Germany. My Company does a lot of contracting and communication with local, state and federal entities, a large part of that is not super secret, but definitely not public either. And now suddenly an Amercian company, that is legally required to hand over all data to NSA, CIA, FBI, etc. has access to (again) all of my external communication. That's a disaster. And quite possibly pretty illegal.
Did they block "social sites" such as stackoverflow for you too?
Yup... they did that...
Yeah. Zscaler was once blocking me from accessing the Cherwell ticket system, which made me unable to write a ticket that Zscaler blocked me access to Cherwell.
Took me a while to get an IT guy to fix it without a ticket.
Now that's a Catch-22
It has the same problem as any kind of TLS interception/ traffic monitoring tool.
It just breaks everything and causes a lot of lost time and productivity firstly trying to configure everything to trust a new cert (plenty of apps refuse to use the system cert store) and secondly opening tickets with IT just to go to any useful site on the internet.
Thankfully, at least in my case, it's trivial to disable so it's the first thing I do when my computer restarts.
Security doesn't seem to do any checks about what processes are actually running, so they think they've done a good job and I can continue to do my job
Oh man our security team is trialing zscaler and netskope right now. I've been sitting in the meetings and it seems like it's just cloud based global protect. GP was really solid so this worries me
It's been ages since I had to deal with the daily random road blocks of ZScaler, but I do think of it from time to time.
Then I play Since U Been Gone by Kelly Clarkson.