Two vulnerabilities in Signal - the most trusted secure messaging application - were reported by Markus Vervier (CEO and Head of Research at X41 D-Sec GmbH, a security company from Germany) and Jean-Philippe Aumasson (Principal Cryptographer at Kudelski Security). Signal is regarded as the most secure messaging application and it's technology is also used by Whatsapp and other messengers. The vulnerabilities discovered allow attackers to modify encrypted attachments and crash the Signal app permanently.
X41 D-Sec is an expert provider of application security services. We focus on application code reviews, design review and security testing. X41 D-Sec GmbH was founded in 2015 by Markus Vervier. We support customers in various industries such as finance, software development and public institutions.