Ask HN: how should I protect my web source code?

I am currently developing a marketplace startup that is ready to launch, but I am curious to know if I should install a firewall (that means upgrading my current shared hosted to a dedicated server) or should I just use a regular shared web hosted like 1and1, godaddy, etc?

Can hackers really break easily into shared hosted server like 1and1 and godaddy and steal source code? Should I be worry about this?

I am currently bootstrapping, of course in ideal situation, I would do what it takes to secure it, etc, but I am not sure if it would be necessary to start. Of course, if things pick up, I would upgrade my package or possibly move to AWS.

Please advise, and thanks again for the input.