Is it OK to store data in localStorage?

Question

In summary, LocalStorage is a good and secure way to store publicly accessible, non-sensitive data that can be converted to a string, is less than 5 MB in size, should not be accessible by workers, and is not accessed often. Otherwise, other options should be considered. 11 дек. 2020 г.

Is it safe to store data in LocalStorage?

No. localStorage is accessible by any webpage, and if you have the key, you can change whatever data you want. That being said, if you can devise a way to safely encrypt the keys, it doesn't matter how you transfer the data, if you can contain the data within a closure, then the data is (somewhat) safe.

Is LocalStorage a security risk?

What is localStorage in JavaScript? localStorage is a property that allows JavaScript sites and apps to save key-value pairs in a web browser with no expiration date. This means the data stored in the browser will persist even after the browser window is closed.

How much data can you store in LocalStorage?

Like SessionStorage, LocalStorage also used for storing the data on the client side. Maximum limit of data saving is about 5 MB in LocalStorage also. LocalStorage has no expiration time, Data in the LocalStorage persist till the user manually delete it.

Can LocalStorage be hacked?

Local storage is bound to the domain, so in regular case the user cannot change it on any other domain or on localhost. It is also bound per user/browser, i.e. no third party has access to ones local storage. Nevertheless local storage is in the end a file on the user's file system and may be hacked.

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