+There are many competitors of EasyPG such as Mailcrypt, Gnus/PGG,
+gpg.el, etc. EasyPG has some advantages over them.
+
+** EasyPG avoides potential security flaws of Emacs
+
+See "Security consideration" section.
+
+** GnuPG features are directly accessible from Emacs
+
+Other competitors provide only specific features of GnuPG since they
+still support PGP 2.*, 5.*, 6.*. As the name indicates, EasyPG is
+inspired by GPGME (GnuPG Made Easy), and the library interface is
+close to GPGME. With EasyPG you can benefit from a lot of features of
+GnuPG.
+
+* Security consideration
+
+** `call-process-region' writes data in region to a temporary file
+
+`call-process-region' writes data in region to a temporary file.
+EasyPG does *not* use `call-process-region' to communicate with a gpg
+subprocess.