---
title: Zoom
url: 'https://www.ondrejsramek.cz/en/blog/zoom'
markdown: 'https://www.ondrejsramek.cz/en/blog/zoom.md'
lang: en
date: '2020-04-30'
description: "Everyone is panicking and banning it... why? Bad reputation Like all applications (Webex, Skype, etc.) Zoom also has bugs, which it's now scrambling to fix as fast as possible — see the plan published on their blog. Facebook data sharing This issue has already been resolved and only affected iOS us…"
taxonomy:
  category:
    - 'informační technologie'
  tag:
    - bezpečnost
    - Skype
    - czechitas
    - zoom
    - webex
  '':
    - ''
  archives_year:
    - '2020'
---

# Everyone is panicking and banning it... why?

### Bad reputation

Like all applications (Webex, Skype, etc.) Zoom also has bugs, which it's now scrambling to fix as fast as possible — see the plan published on their blog.

### Facebook data sharing

This issue has already been resolved and only affected iOS users (Apple iPhone/iPad). Data sharing is a big topic right now, but this isn't the first or last app that's been caught doing it — see Facebook Off.

### Zoombombing

This problem is a configuration issue. If a video conference is insufficiently secured (no password, no access control) this can happen. In my opinion this is not primarily a Zoom problem but a user problem — people who can't set it up properly and assume the default settings are secure (which turns out to be a wrong assumption — and this applies generally, not just to Zoom).

### Encryption

Zoom, like other platforms, uses encryption. The problem is that Zoom was marketing end-to-end encryption but that wasn't true.
Like others (e.g., Skype or Webex) it uses **TLS** — the same protocol responsible for securing the transport layer of HTTPS.
Using end-to-end encryption typically limits what the service can do (*Google Hangouts/Duo* don't support more than 12 participants, *Webex* won't allow the web app, recording, etc.).
In my opinion there's nothing to worry about if you're using the latest version of the app and following the recommended settings.

 [ Previous Post](https://www.ondrejsramek.cz/en/blog/sans-netwars) [Next Post ](https://www.ondrejsramek.cz/en/blog/vyuka-online) 

#### Other Related Posts:

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###  Odposlech Skype? 

[Odposlech Skype?](https://www.ondrejsramek.cz/en/blog/odposlech-skype)

# As part of my thesis I also analysed the **Skype** application.

In one case I discovered unusual traffic that doesn't appear in...

 14th Jul 2013 - ondra 

 [  bezpečnost  ](https://www.ondrejsramek.cz/en/blog/tag:bezpe%C4%8Dnost#blog_list) [  czechitas  ](https://www.ondrejsramek.cz/en/blog/tag:czechitas#blog_list) [  kurz  ](https://www.ondrejsramek.cz/en/blog/tag:kurz#blog_list) [  škola  ](https://www.ondrejsramek.cz/en/blog/tag:%C5%A1kola#blog_list) 

###  Endpoint Security 

[Endpoint Security](https://www.ondrejsramek.cz/en/blog/bezpecnost-koncovych-zarizeni)

# Another course for Czechitas

After several years of teaching the (online) security course at Czechitas, last year we decided to create a follow-up course — one that extends the basic security awareness. As it happened, a few of my former colleagues and friends who work in security joined Czechitas...

 19th Mar 2022 

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    - [Čeština](https://www.ondrejsramek.cz/cs/blog/zoom)

---

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