+If Emacs crashed and dumps core, passphrase strings in memory are also
+dumped within the core file. `read-passwd' function clears passphrase
+strings by `(fillarray string 0)'. However, Emacs performs compaction
+in gc_sweep phase. If GC happens before `fillarray', passphrase
+strings may be moved elsewhere in memory. It is recommended that as
+soon as you are done with passphrase you should clear it manually.
+However, PGG and gpg.el can keep passphrase strings in cache for a
+while and this behavior is their default!
+
+** 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.