Like a privacy based fully open source browser. Wouldnt it be more hackable because every one know the script and is a glopal privacy based gpay alternative possible ? What about targeted hacking is someone using closed source application more better off than someone with ooen source ?
Neither closed source nor open source is a guarantee of a quality code base.
There are white hat (good person) as well as black hat hackers.
If everyone can see the source code, there are more eyes able to spot problems and fix them.
And someone can fork the codebase if the original author or current maintainer refuses to fix major issues. Closed source software vendors refuse to do so quite frequently.