That's not enough. This unknown, anonymous outfit wants you to trust them to collect info about security vulnerabilities on your site. That's asking a lot.
Remember, in B2B you're selling to the main in the chair[1]:
I don’t know who you are.
I don’t know your company.
I don’t know your company’s product.
I don’t know what your company stands for.
I don’t know your company’s customers.
I don’t know your company’s record.
I don’t know company’s reputation.
Now—what was it you wanted to sell me?
Sure, if you don't want to do business with a brand new startup, just wait a bit for them to mature. But no need to sound the snake oil alarm.
That being said, putting ToS and privacy policy links on the signup and main page would be a good idea.