Ask HN: How much money is all alphabets source code worth?

if hackers somehow download all of alphabet source code and put it on an admittedly large USB how much would it be worth? alternately if hackers were able to destroy all of the commit history of the code what would the risk cost?

I started thinking about this considering errors in git history and how risky that is for companies. then considering what if a company lost everything, backups and all, and wondering how hard would it be to build again, price seemed a good estimate of the value of that IP / difficulty of rebuilding.