Get ready to find out if your Facebook data has been swept up in the Cambridge Analytica scandal.
Starting this week, the 87 million users who might have had their data shared with Cambridge Analytica will get a detailed message on their news feeds. Facebook says most of the affected users (more than 70 million) are in the US, though there are over a million each in the Philippines, Indonesia and the UK.
There were also 300,000 users affected in Australia and 64,000 in New Zealand.
In addition, all 2.2 billion Facebook users will receive a notice titled "Protecting Your Information" with a link to see what apps they use and what information they have shared with those apps. If they want, they can shut off apps individually or turn off third-party access to their apps completely.