Security breaches that have been discovered could potentially disclose the contents of encrypted messages that you send and receive by email when you are connected with PGP or S / MIME encryption methods.
We will publish critical vulnerabilities in the encryption of PGP / GPG and S / MIME emails on 2018-05-15 07:00 UTC. They could reveal plain text encrypted emails, including encrypted emails sent in the past. #efail 1/4
– Sebastian Schinzel (@seecurity) May 14, 2018
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The warning comes from a group of security researchers in Europe from the University of Münster, the Ruhr University and the University KU Leuven, and its members have already revealed the attack of Drown affected about 11 million HTTPS sites in 2016.
The group will publish a research paper detailing vulnerability on Tuesday; He notes that there is no patch yet, and that you will want to disable the PGP plugins in your email client of your choice until we have more information.
Your best bet for secure communication at this point would probably be an encrypted email application like Signal .
We will update this post as we learn more.