Quote
The company behind Ghostery, a privacy-focused browser and an ad-blocking browser extension, has apologized for a technical error that occurred last Friday when its staff was sending out GDPR-themed notification emails.
According to numerous user reports, Ghostery sent out emails that exposed the addresses of other users.
The emails were sent to batches of 500 users at the same time, and every user in each batch was able to see the email addresses of the other users.









oooh, that was a bad mistake for anyone, but especially coming from a "a privacy-focused browser and an ad-blocking browser extension"