Business users' billing information was inadvertently stored in the browser's cache, making it possible for the exposed data to be accessed by users who share computers.
Twitter will pay a GDPR fine of €450,000 (about $546,000) in the first EU cross-border enforcement action brought against a tech giant.
As third-quarter reports roll out, the full effect of the Apple privacy changes to iOS are beginning to be measurable. The early report is that the ad revenue impact is very different for different companies.
Twitter has in recent years has begun periodically requiring phone number checks for "account security." What users have not always been aware of is that these items have been added in to Twitter's internal personalized advertising system.