4 votes New technique reveals centuries of secrets in locked letters Posted March 12, 2021 by drannex Tags: letters, cryptology, security, technology, archives, researchers, mit, author.william j broad, source.the new york times, paywall.soft https://www.nytimes.com/2021/03/02/science/locked-letters-unfolding.html Link information This data is scraped automatically and may be incorrect. Published Mar 2 2021 Word count 1039 words