Beoordelingsdatum: 8 september 2021


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Mensen stemden op: Heel griezelig

Teams, the business-focused service from Microsoft that integrates with its popular Office365 services, saw a surge of use when the pandemic hit and its user base has grown to more than 250 million users in 2021. Similar to Zoom, Teams allows for video chats between hundreds – even thousands – of people and lets users join a call with just a meeting link, no app installation needed. Teams also offers Slack-like features, letting users instant message colleagues. The Teams vs Slack vs Zoom questions seems to be one of the big questions of 2021, at least according to the approximately eight gazillion articles written on the topic this year. Most users probably don’t have a choice though, they just go with what their place of work gives them.

Wat kan er gebeuren als er iets misgaat?

When it comes to Teams, we find some good and some bad. Microsoft has had some bumps this year when it comes to security, most notably a major hack that left their Microsoft Exchange email service vulnerable and exploited. That hack didn’t affect Teams, but coupled with a few other incidents like in December, 2019 when 250 million internal customer service and support logs were exposed online, and Microsoft’s security feels a little uncertain. Microsoft did pay 341 researchers millions of dollars in a year for reporting security vulnerabilities, so their bug bounty project is working. That is good. Teams doesn’t use stronger end-to-end encryption for their video calls, but it does use encryption in transit and at rest, which is OK. Microsoft does collect a fair amount of data on users, and says it uses that data for things like targeted ads as well as sharing it with third-parties like Facebook, Verizon, and combining its data with data from third parties such as data brokers. None of this is great. One good thing we did like about Teams that gives it a leg up over Slack, is Teams for use in your personal life has a feature to allow users to block a contact. This is a great feature for users experiencing harassment or abuse. Note, this feature only works in Teams for personal use; it is not available for Teams through a work or school account. Still, Slack doesn’t have any block feature at all.

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Kan het me bespioneren? informatie


Apparaat: Niet beschikbaar

App: Ja


Apparaat: Niet beschikbaar

App: Ja

Volgt locatie

Apparaat: Niet beschikbaar

App: Ja

Wat is er nodig om u aan te melden?

Teams is part of Microsoft 365 suite, so the latter account is required. Teams also offers guest accounts that expire after 24 hours.

Welke gegevens verzamelt het bedrijf?

Hoe gebruikt het bedrijf deze gegevens?

Microsoft uses data, among other aims, to advertise and market to you, which includes sending promotional communications, targeting advertising, and presenting you with offers. It does use your data to target you with advertising within Microsoft web properties. It also allows numerous partners like Verizon and Facebook, to collect data about your online activity for advertising purposes, and to place their own ads. Microsoft also extensively combines its data with third parties, such as data brokers for demographic data, service providers that help determine your device’s location, marketing partners, third parties that deliver experiences through Microsoft products, and publicly-available sources, such as open government databases.

Hoe kunt u uw gegevens beheren?

Microsoft Teams claims to retain your data for the minimum amount of time necessary to deliver the service. If a user (or an administrator on the user's behalf) deletes the data, Microsoft will ensure that all copies of the personal data are deleted within 30 days. If a company terminates service with Microsoft, corresponding personal data will all be deleted between 90 and 180 days of service termination.

Hoe staat het bedrijf bekend als het gaat om het beschermen van gebruikersgegevens?

Verbetering nodig

On one hand, Microsoft is making a considerate effort to improve its security. The company revealed that it paid 341 researchers a total of $13.6 million in bounties in 2020. However, this did not help against the March 2021 hack of Microsoft 365, that exploited bugs in the product. At least 30,000 U.S. organizations were reported to be affected.

Kan dit product offline worden gebruikt?

Niet beschikbaar

Gebruikersvriendelijke privacy-informatie?


It is difficult to extract Teams-specific information from the general Microsoft policy.

Koppelingen naar privacy-informatie

Voldoet dit product aan onze minimale beveiligingsnormen? informatie




Microsoft Teams has encryption in transit and at rest, by default. Right now, there is no feature of end-to-end encryption. Microsoft says that Teams will soon support an option to use end-to-end encryption only for 1-to-1 Teams audio calls. The feature will have to be turned on by the IT department in an organization - not by users themselves.

Sterk wachtwoord


For full functionality, the app requires a registered Microsoft account. Most accounts are secured with a password, although users can choose to use the Microsoft Authenticator phone app to sign in without a password. Passwords must have at least 8 characters and contain at least two of the following: uppercase letters, lowercase letters, numbers, and symbols.



Microsoft pushes regular security updates to its communication products.

Beheert kwetsbaarheden


Microsoft has a bug bounty program for security vulnerabilities.



Rather complicated but holistic privacy policy. No separate policy for Teams.

Gebruikt het product AI? informatie


AI is used for several features, like Together Mode, AffectiveSpotlight (demo), etc. Moreover, Microsoft offers Microsoft Cognitive Services - image and facial recognition services that companies can use to develop their own AI-driven tools.In February 2021, Microsoft presented a new AI bot AffectiveSpotlight that uses neural networks to check what meeting participants are most engaged based on their facial expressions. So, once it goes fully into features, better turn your face on. : )

Is deze AI onbetrouwbaar?

Kan niet bepalen

Wat voor soort beslissingen neemt de AI over u of voor u?

Is het bedrijf transparant over hoe de AI werkt?


Heeft de gebruiker controle over de AI-functies?

Kan niet bepalen

*Privacy niet inbegrepen

Dieper duiken

  • Microsoft Security Shocker As 250 Million Customer Records Exposed Online
    Forbes Koppeling opent in een nieuw tabblad
  • How to Look Like a Potato in a Microsoft Teams Video Conference
    How-To Geek Koppeling opent in een nieuw tabblad
  • Rethinking Zoom? How WebEx, Teams, and Google Meet and Duo Compare on Privacy and Security
    Inc. Koppeling opent in een nieuw tabblad
  • Thousands of Microsoft Customers May Have Been Victims of Hack Tied to China
    NY Times Koppeling opent in een nieuw tabblad
  • Microsoft Teams: Here's when your calls will get end-to-end encryption
    Tech Republic Koppeling opent in een nieuw tabblad
  • How To Block A Contact
    Microsoft Koppeling opent in een nieuw tabblad


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