Thursday, December 23, 2021 [Tweets] [Favorites]

FBI Guide to Getting Messaging Data

Andy Kroll (via Bruce Schneier):

But in a previously unreported FBI document obtained by Rolling Stone, the bureau claims that it’s particularly easy to harvest data from Facebook’s WhatsApp and Apple’s iMessage services, as long as the FBI has a warrant or subpoena. Judging by this document, “the most popular encrypted messaging apps iMessage and WhatsApp are also the most permissive,” according to Mallory Knodel, the chief technology officer at the Center for Democracy and Technology.

[…]

There are several messaging apps listed in the FBI document for which minimal data is available to law enforcement without the actual device in hand. Signal will provide only the date and time someone signed up for the app and when the user last logged into the app. Wickr will give law enforcement data about the device using the app, when someone created their account, and basic subscriber info, but not detailed metadata, the FBI document says.

Previously:

Update (2021-12-28): See also: Hacker News.

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