EDIT: According to a Google representative on the reddit thread, this application is now blocked. If your account was affected, you no longer need to do anything.
If you fell for this, changing your password is not the right solution - you want to log into your google account and remove permissions from the application.
If you fell for this, changing your password is not the right solution - you want to log into your google account and remove permissions from the application.
https://myaccount.google.com/permissions?pli=1 should show a list of apps connected to your account.
Also, if you fell for this, you sent a bunch of emails to people like the one you received, so maybe tell them not to click.