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 ?
They are equally exploitable, but those exploits are generally easier to find and fix on open source software than closed.
As an example, look at the exploit chain Apple had only patched recently, “TriangleDB”. The exploit relied on several security flaws and undocumented functions, and it was used extensively in state-sponsored malware such as Pegasus for years. If any part of the exploit chain were patched, the malware wouldn’t have worked. It took a Russian cybersecurity firm a significant effort to track down how the exploit worked when they found out they were being targeted by the malware.