Meta is introducing WhatsApp ads on a rolling basis. Privacy experts raise the alarm, despite WhatsApp's assurance that end-to-end encryption remains.

The launch upends its founders’ original mission of creating an app with ‘No Ads! No Games! No Gimmicks!’ This week, WhatsApp did something its founders said it would never do: it’s putting advertisements inside the app. It ends WhatsApp’s decade-plus run of offering an ad-free messaging and calling experience.

More than a decade after it acquired WhatsApp, Meta will begin showing ads within the app.