Google is more secure. Through email is more private. Theoretically.

Google claims they don’t monitor the sign in with Google for their data collection. So signing in with Google means you authenticate with Google and then Google tells udemy you are who you are. Don’t cite me but I’m pretty sure Google’s authentication security is one of the best compared to almost all sites. And that’s before you sign up for their more advanced account protection. Since this is the privacy sub you should be aware that if Google is lying, then they’ll know every time you sign into Udemy.

A middle ground is that Google knows every time your browser needs an authentication token for Udemy, so worse case they know your an active Udemy user when you get a new token every 30 days.

E-mails is a one and done deal. Google knows you created a Udemy account. Google does not know how active you are as user (again they claim the sign in data is only for security and not used for advertising). Which is probably a moot point, their AI can read the Udemy “wow you beat your record this week” email vs the Udemy “we haven’t seen you in a week” email.

Also wtf, get a proton mail account (yes I’m a shill for them).