To make fiverr account more secure to protect from hackers, login approval is needed. Login approval is sending a confirmation code that sent to buyers or sellers e-mail or phone, when anyone try to login his fiverr account. After submitting login details, a code will need to login. If he able to submit the accurate code, then he will be logged in, otherwise not.
I login 100 times a day. I hope you don’t mean when we try to login to our own accounts?
Yes. I mean, when someone/hackers try to login my/your account.