Black Hat·46 min
Analysts investigate attack surfaces and defenses concerning Efail: Breaking S/MIME and OpenPGP Email Encryption using Exfiltration Channels.
encryptionexfiltrationefail+3
efail
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Main Stage·23 min
Jens Muller
Extends EFAIL research with new covert channel attacks that exfiltrate PGP and S/MIME plaintext without triggering known detection mechanisms.
email-securitypgpsmime+2