<s>
Masque	B-Operating_System
Attack	I-Operating_System
is	O
the	O
name	O
of	O
an	O
iOS	B-Application
vulnerability	O
identified	O
and	O
named	O
by	O
computer	O
security	O
company	O
FireEye	O
in	O
July	O
2014	O
.	O
</s>
<s>
The	O
vulnerability	O
is	O
identified	O
to	O
exist	O
on	O
iOS	B-Application
7.1.1	O
,	O
7.1.2	O
,	O
8.0	O
,	O
8.1	O
and	O
8.1.1	O
beta	O
,	O
and	O
on	O
jailbroken	B-Application
and	O
non-jailbroken	O
iOS	B-Application
devices	O
.	O
</s>
<s>
The	O
deceptive	O
app	O
can	O
then	O
replace	O
and	O
pose	O
as	O
the	O
legitimate	O
app	O
,	O
as	O
long	O
as	O
the	O
app	O
was	O
not	O
one	O
pre-installed	O
along	O
with	O
iOS	B-Application
(	O
i.e.	O
,	O
the	O
default	O
Apple	O
apps	O
)	O
–	O
and	O
thus	O
,	O
the	O
reason	O
FireEye	O
gave	O
for	O
naming	O
the	O
vulnerability	O
"	O
Masque	B-Operating_System
Attack	I-Operating_System
"	O
.	O
</s>
<s>
On	O
November	O
13	O
,	O
2014	O
,	O
the	O
United	O
States	O
Computer	O
Emergency	O
Readiness	O
Team	O
(	O
US-CERT	O
,	O
part	O
of	O
the	O
Department	O
of	O
Homeland	O
Security	O
)	O
released	O
Alert	O
bulletin	O
TA14-317A	O
,	O
regarding	O
the	O
Masque	B-Operating_System
Attack	I-Operating_System
.	O
</s>
