Check out Getting “Only” Right by rogersgeorge. Here is an excerpt:
Bruce Schneier is a cybersecurity and cryptography guru. (They say he’s so good he can decode alphabet soup.) I happen to be a regular reader of his Crypto-gram newsletter, and here’s a quote from the April 2018 edition:
It’s routine for US police to unlock iPhones with the fingerprints of dead…
The full article is available here.