Thanks for the tip on the browser. Information security, especially personal finance. it quite critical.
As to Duck Duck Go, because it is located in the US they can be required to provide an information they get, IP address, what you searched for, etc., to the feds without you being told that it is happening. It's not that they aren't trying to be very good in protecting your data from the web sites that you may have searched for to companies to use for advertising like Google does, they are one of the two best in the world. The other one is located in Holland and because the European Union security rules are much stricter than here Startpage.com is the only search engine in the world with an European Privacy Seal, and they have to prove they meet the requirements every year.
I suggest you consider using them while you search for what you need.