The FBI is treating any mobile app that comes out of Russia as a "potential counterintelligence threat," the U.S.'s top law enforcement agency said in a letter to Senate Democratic leader Chuck Schumer.
The Federal Bureau of Investigation's concern arises in part from "the legal mechanisms available to the Government of Russia that permit access to data" in the country, according to the letter, which Schumer's office released Monday.
The FBI said its concerns extend to FaceApp, which grew popular over the summer by allowing users to change ages and genders in photographic portraits. In July, Schumer had asked the FBI and Federal Trade Commission to look into the national security and privacy implications of the app, which was developed by Russian-based Wireless Lab.
This year, Russia passed a law backed by President Vladimir Putin calling for a "sovereign internet" that routes traffic through domestic servers.
Russia has also required internet firms since 2015 to store the personal data of Russian users inside the country, and its security services have the power to demand social media companies provide access to users' online data.
"Russia's intelligence services maintain robust cyber exploitation capabilities," the FBI said, adding that authorities there "can remotely access all communications and servers on Russian networks" without requests to internet providers.
FaceApp said it uploads users' photos to servers in the U.S., Singapore, Ireland and Australia and "removes most photos from its servers 48 hours after submission," according to the FBI.
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