ummm.. might want to worry about the possibility that it could be a password thief or a creditcard/bank info thief. no idea who wrote it, except for some students.
This is a legit program sanctioned by Stanford U and backed by the largest tech companies in the world: Google, Intel, IBM, Apple, HP, etc.
These are accredited and safe..
I have run Berkeley's SETI and BOINC for years now, and never had any security problems.. ( We run anti-virus and Adware and security programs on a daily basis.. To the point we have been called "obsessive".. )
These programs are constantly monitored for hacks and hackers.. Their reputation is everything to them, and could cost them large chunks of their funding if anything went "wrong"..
These distributed computing projects are literally worth their weight in gold to researchers..
Volunteered computing time is priceless..
Heads would roll.. Seriously..
Try reading about it before you try to scare off volunteers.
Knee jerk reactions like yours make it harder for those of us that want to do something good1