Multiple +Message Apps (Softbank +Message App for Android prior to version 10.1.7 Softbank +Message App for iOS prior to version 1.1.23 NTT DOCOMO +Message App for Android prior to version 42.40.2800 NTT DOCOMO +Message App for iOS prior to version 1.1.23 KDDI +Message App for Android prior to version 1.0.6 and KDDI +Message App for iOS prior to version 1.1.23) do not verify X.509 certificates from SSL servers which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.