If it's a phishing scam, it's a very convincing one...pic.twitter.com/A337Itt6bk
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I don't think it's a scam. It seems that this is targeted for developers who have a client app that uses the youtube API to access account information (ex. Socialblade).
And they are just asking for a (not your) username and password so that they can access the client maybe for testing and evaluation purposes of how their API is being used and check if it is being done correctly and there is no misuse of the information.
Iirc @thejanbeta got this mail a few days ago.
any competent company wouldn't ask you to enter in your credentials in some rando email link they sent you; think of it this way man, if your bank sent you something like this, it would have gone straight into the spam folder for deletion when you saw it
99.99% scam.
They should be able to deduce exact;y how their API is used by your client from the logs on their end alone. Never give out access like this unless it's for something you specifically ordered, or at least get confirmation in a separate conversation.
Tactical post
I would contact them directly and ask about it, just as I do when I get an e-mail about anything that I don't understand. There are so many scams going on that I'm afraid to answer the phone anymore. If I don't know who is calling or sending me an email I don't answer right away.
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