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What’s up with Sandboxing?

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OS
Development
Gadgets

In February 2021 we released Sailfish OS 4.0.1 Koli, which introduced a new concept into the OS: Application sandboxing. For the device user, the sandboxing is mostly visible in the permissions dialogs, displayed when a sandboxed app is run for the first time. In this blog post, I’ll dig into the current status, our plans for the future, and what this all means for application developers.

In case you haven’t heard about sandboxing in the context of Sailfish OS before, here’s a short primer: the purpose of sandboxing is to improve user privacy, by limiting what applications can do. This is done using a security technology in the Linux kernel called namespaces. This is a lightweight but effective mechanism, which lets us define quite nicely which resources each app can use. All in all, the end result is that the device user is in charge of what resources each app can access.

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Where does Sailfish OS stands in sandboxing?

  • Where does Sailfish OS stands in sandboxing?

    A current entry in Jolla’s blog deals with the sandboxing model that Jolla introduced in February with the release of Sailfish OS 4.0.1 “Koli” . The article goes into the current status and the plans for the future of this security technology at Sailfish OS.

    As with other operating systems, sandboxing is designed to help improve user privacy by restricting what applications are allowed to do. This is done using the security technology of the namespaces in the kernel. This is a lightweight but effective mechanism that makes it relatively easy to define what resources each application can consume. Control over the authorizations is then passed to the user in a dialog when an app is started for the first time.

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