This is reported by Reuters.
Warner and Rubio's letter reveals that since September 2018, hundreds of thousands of developers in "high-risk" countries have had access to "significant amounts of sensitive user data" on Facebook*.
“We have serious concerns about the extent to which this access could facilitate the activities of foreign intelligence services, ranging from malicious foreign influence to counterintelligence,” the letter states.
Earlier, the Irish Data Protection Commission fined US company Meta €390 million for violating privacy rules on its Facebook and Instagram**.
Meta was sued in June in a class-action lawsuit alleging that Facebook, its social network, collected medical data from users when they visited health care provider portals.
* Meta Platforms Inc. (owner of Facebook and Instagram) - the organization was recognized as extremist, its activities are prohibited on the territory of Russia by the decision of the Tverskoy Court of Moscow dated 03/21/2022.
** Meta product, activity recognized as extremist, banned in Russia by decision of the Tverskoy Court of Moscow dated 03/21/2022.