# Sniffing Zoom Post Quantum TLS

**URL:** <https://devforum.zoom.us/t/sniffing-zoom-post-quantum-tls/137676>\
**Category:** Meetings\
**Created:** [September 26, 2025, 9:11am UTC](https://devforum.zoom.us/t/sniffing-zoom-post-quantum-tls/137676 "2025-09-26T09:11:12Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![shakedm100](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/shakedm100/32/57687_2.png) [@shakedm100](https://devforum.zoom.us/u/shakedm100)\
**Post date:** [September 26, 2025, 9:11am UTC](https://devforum.zoom.us/t/sniffing-zoom-post-quantum-tls/137676/1 "2025-09-26T09:11:12Z")

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Hey everyone,

I’m trying to capture Zoom’s post-quantum TLS traffic with Wireshark, but so far I haven’t had success.

**Setup:**

- Windows computer hosting the meeting (E2EE enabled).

- Another Windows device acting as an access point (via hotspot).

- Pixel 8 running the latest Android version, connected to that access point.

- Wireshark is capturing traffic on the access point’s interface.

**What I tried:**

- Started a meeting on the Windows host.

- Joined the same meeting with the Pixel 8 through the access point.

- Captured all traffic and checked the TLS ClientHello/ServerHello messages.

**Result:**

- All Zoom TLS traffic appears to be non-PQC.

- However, the in-meeting green shield does show “Post-Quantum End-to-End Encryption.”

**Additional info:**

- Both desktop and Android Zoom apps are up to date (Desktop version - 6.6.0, Android version - 6.5.12.33008).

- Tried both when host and client are on the same access point and when they’re not.

Am I missing something in how PQC is negotiated, or is there another way I should capture traffic from the Android device to confirm PQC TLS?

Thanks in advance.