The varying pronunciations of "data" are recognized in the dictionary, and I've heard knowledgeable technical people using all of them: https://www.merriam-web

The varying pronunciations of "data" are recognized in the dictionary, and I've heard knowledgeable technical people using all of them: https://www.merriam-webster.com/dictionary/data https://www.merriam-webster.com/dictionary/data According to the above reference, "data" first started being used in English in 1646, so I'm not sure why technical people in the 21st century should get to say what the "correct" pronunciation is. (Spelling "lose" as "loose" is clearly an error - they're two separate words with entirely different meanings - so that's a poor analogy.)