Slack and Microsoft Teams have some rather worrying security flaws
Slack and Microsoft Teams, arguably the two biggest communications and online collaboration platforms around today, allow for the inclusion of hundreds of third-party apps, and that’s a security nightmare, experts have said.
Researchers at the University of Wisconsin-Madison argue that third-party apps rarely have their code reviewed by programmers at Slack and Microsoft. Even those that do, undergo a relatively superficial analysis, in which the reviewers analyze if the app works as intended, if it encrypts data, and run an automated scan that looks for vulnerabilities.
The rest just sits on the apps’ developers’ servers and freely integrates with Slack and Microsoft Teams.
With these platforms becoming the defacto operating systems of corporate productivity, this is a major security risk, researchers claim.
“Slack and Teams are becoming clearinghouses of all of an organization’s sensitive resources,” Earlence Fernandes, one of the study’s authors, and a professor of computer science at the University of California at San Diego, said. “And yet, the apps running on them, which provide a lot of collaboration functionality, can violate any expectation of security and privacy users would have in such a platform.”
For the time being, Microsoft is keeping silent on the matter, until it is able to speak to the researchers more thoroughly.
Slack, on the other hand, said it has a collection of approved apps that can be found in the Slack App Directory, and “strongly recommends” users install these apps, only, on their endpoints. These, the company added, receive security reviews before inclusion, and are monitored for suspicious behavior.
Furthermore, Slack suggests IT admins configure their workspaces to allow users to install apps only with admin permission. “We take privacy and security very seriously and we work to ensure that the Slack platform is a trusted environment to build and distribute apps, and that those apps are enterprise-grade from day one,” the company concluded.
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