A visitor tries out the BlackBerry Passport during the smartphone's launching event in Toronto in September 2014. Aaron Harris / Reuters
A visitor tries out the BlackBerry Passport during the smartphone's launching event in Toronto in September 2014. Aaron Harris / Reuters
A visitor tries out the BlackBerry Passport during the smartphone's launching event in Toronto in September 2014. Aaron Harris / Reuters
A visitor tries out the BlackBerry Passport during the smartphone's launching event in Toronto in September 2014. Aaron Harris / Reuters

Secure messaging scorecard — graphic


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The Secure Messaging Scorecard by the Electronic Frontier Foundation examines dozens of messaging technologies and rates each of them on a range of security best practices.