Vk api, access to my messages?

Question

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Do I understand correctly, if the application requests access to my messages, it will be able to see all the messages?
It doesn't matter through the application or through the assens_token, in general, through any authorization method.. ?

Answer 1

No, not any authorization method will work.
Only upon authorization in Desktop (Standalone) applications, a token is generated, which allows the application to use the extended methods of the VK API.