I've read it, it's sloppy but fine. The same user who feeds in the values for 'system' is also trusting the program with their bitcoins! This is (in my opinion

I've read it, it's sloppy but fine. The same user who feeds in the values for 'system' is also trusting the program with their bitcoins! This is (in my opinion) like saying "bash" is a security issue because you can give it bash scripts.