<s>
ChatSecure	B-Protocol
is	O
a	O
messaging	O
application	O
for	O
iOS	B-Application
which	O
allows	O
OTR	B-Protocol
and	O
OMEMO	B-Application
encryption	O
for	O
the	O
XMPP	B-Protocol
protocol	I-Protocol
.	O
</s>
<s>
ChatSecure	B-Protocol
is	O
free	B-Application
and	I-Application
open	I-Application
source	I-Application
software	I-Application
available	O
under	O
the	O
GPL-3.0-or-later	B-License
license	O
.	O
</s>
<s>
ChatSecure	B-Protocol
has	O
been	O
used	O
by	O
international	O
individuals	O
and	O
governments	O
,	O
businesses	O
,	O
and	O
those	O
spreading	O
jihadi	O
propaganda	O
.	O
</s>
<s>
ChatSecure	B-Protocol
was	O
originally	O
released	O
in	O
2011	O
,	O
and	O
was	O
the	O
first	O
iOS	B-Application
application	I-Application
to	O
support	O
OTR	B-Protocol
messaging	I-Protocol
.	O
</s>
<s>
In	O
2012	O
,	O
ChatSecure	B-Protocol
formed	O
a	O
partnership	O
with	O
The	B-Application
Guardian	I-Application
Project	I-Application
and	O
the	O
Gibberbot	O
app	O
was	O
rebranded	O
to	O
"	O
ChatSecure	B-Protocol
Android	B-Application
"	O
.	O
</s>
<s>
In	O
late	O
2016	O
,	O
the	O
Android	B-Application
branding	O
partnership	O
was	O
ended	O
,	O
with	O
ChatSecure	B-Protocol
Android	B-Application
becoming	O
'	O
Zom	O
 '	O
,	O
and	O
ChatSecure	B-Protocol
iOS	B-Application
remaining	O
as	O
ChatSecure	B-Protocol
.	O
</s>
<s>
ChatSecure	B-Protocol
iOS	B-Application
remains	O
in	O
active	O
development	O
and	O
is	O
unaffected	O
by	O
this	O
change	O
.	O
</s>
<s>
ChatSecure	B-Protocol
is	O
censored	O
from	O
the	O
App	B-Application
Store	I-Application
in	O
China	O
.	O
</s>
<s>
In	O
November	O
2014	O
,	O
"	O
ChatSecure	B-Protocol
+	O
Orbot	B-Language
"	O
received	O
a	O
perfect	O
score	O
on	O
the	O
Electronic	O
Frontier	O
Foundation	O
's	O
"	O
Secure	O
Messaging	O
Scorecard	O
"	O
;	O
the	O
combination	O
received	O
points	O
for	O
having	O
communications	O
encrypted	O
in	O
transit	O
,	O
having	O
communications	O
encrypted	O
with	O
keys	O
the	O
provider	O
does	O
n't	O
have	O
access	O
to	O
(	O
end-to-end	O
encryption	O
)	O
,	O
making	O
it	O
possible	O
for	O
users	O
to	O
independently	O
verify	O
their	O
correspondents	O
 '	O
identities	O
,	O
having	O
past	O
communications	O
secure	O
if	O
the	O
keys	O
are	O
stolen	O
(	O
forward	O
secrecy	O
)	O
,	O
having	O
the	O
code	O
open	O
to	O
independent	O
review	O
(	O
open	B-Application
source	I-Application
)	O
,	O
having	O
the	O
security	O
designs	O
well-documented	O
,	O
and	O
having	O
a	O
recent	O
independent	O
security	O
audit	O
.	O
</s>
