Sync is popular because its closed source makes it harder to break the security aspect if you don't have all the access to source code.

Do I understand correctly that you mean, that closed source makes something more secure?

I believe that open source can be more secure because:

• More people looked at the source code thus more bugs have been discovered.
• Bad actors will get a hold of your code anyways. Especially mobile apps should be easy to reverse engineer.
• Intentional backdoors are easier to hide in closed source applications.

There might be more arguments, but I think you get the point.

The only real problem I am aware of is breaking some types of public key encryption. Which is kinda bad because post quantum encryption is still in its infancy.

Thank you for your answer. I will read the article you linked.

I initially was just very irritated by your comment because it sounded like closed source is more secure in general.

Have a nice evening too.

Thanks for pointing me at tide. I always used the pure prompt but tide looks like pure on steroids.

Thank you. Will take a look as well.