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Note—the technical details of the vulnerabilities introduced in this article has now been released, so you should also read our latest article to learn how the eFail attack works and what users can do to prevent themselves.

An important warning for people using widely used email encryption tools—PGP and S/MIME—for sensitive communication.

A team of European security researchers has released a warning about a set of critical vulnerabilities discovered in PGP and S/Mime encryption tools that could reveal your encrypted emails in plaintext.

What’s worse? The vulnerabilities also impact encrypted emails you sent in the past.

images from Hacker News