Twitter Says Some Personal Info May Have Been Misused For Ad Targeting

Twitter used personal data from users, intended for security, to tailor ads. The extent of the impact is unclear. Twitter addressed the issue in September, ensuring no data was shared with third parties. Recently, CEO Jack Dorsey's account was hacked, and in May, Twitter advised users to change passwords due to unmasked storage. The company assured no breach occurred.

What action did Twitter take regarding user passwords in May?

What was Twitter's stance on the belief that user information was breached?