Do those emails occur soon after you log in to Spotify? I recently found out that Spotify secretly tries to log you in as a Facebook user even if you don't use

Do those emails occur soon after you log in to Spotify? I recently found out that Spotify secretly tries to log you in as a Facebook user even if you don't use Facebook login. It first tries to pass the credentials through Facebook login and if that fails it goes through regular email login. This failed attempt triggers the Facebook security emails I'm not sure that what they are doing is even legal. Just another reason to NEVER use the same email/password combination on multiple sites. I wouldn't be surprised if other apps are doing the same thing.