As with many other large tech companies, Tesla employees have a thing for leaking private company information to the press. Tesla is fighting back by threatening leakers with dismissal and lawsuits.
Sometime in May 2019, Tesla security team sent an email to employees revealing they had fired and sued several employees for a range of offences, including sharing production data with journalists and posting private company information and phone numbers on social media.
In the email, the security team added that every worker needed to protect company information from unspecified people who wanted to see Tesla fail. However, it appears Tesla employees do not care since the email warning them against leaking company information was also leaked. That is why you are reading about it anyway.