<s>
Grammarly	B-Operating_System
is	O
an	O
American	O
cloud-based	B-Architecture
typing	O
assistant	O
.	O
</s>
<s>
Grammarly	B-Operating_System
was	O
launched	O
in	O
2009	O
by	O
Alex	O
Shevchenko	O
,	O
Max	O
Lytvyn	O
,	O
and	O
Dmytro	O
Lider	O
.	O
</s>
<s>
Grammarly	B-Operating_System
is	O
available	O
as	O
a	O
standalone	O
application	O
for	O
use	O
with	O
desktop	O
programs	O
,	O
a	O
browser	B-Protocol
extension	I-Protocol
optimized	O
for	O
Google	B-Application
Docs	I-Application
,	O
and	O
a	O
smartphone	O
keyboard	O
.	O
</s>
<s>
Grammarly	B-Operating_System
is	O
developed	O
by	O
Grammarly	B-Operating_System
Inc.	O
,	O
with	O
hubs	O
in	O
San	O
Francisco	O
,	O
California	O
,	O
and	O
offices	O
in	O
Kyiv	O
,	O
New	O
York	O
City	O
,	O
Vancouver	O
,	O
and	O
Berlin	O
.	O
</s>
<s>
Grammarly	B-Operating_System
was	O
founded	O
by	O
Max	O
Lytvyn	O
,	O
Alex	O
Shevchenko	O
,	O
and	O
Dmytro	O
Lider	O
,	O
the	O
creators	O
of	O
My	O
Dropbox	O
,	O
an	O
app	O
that	O
checks	O
essays	O
for	O
plagiarism	O
.	O
</s>
<s>
Grammarly	B-Operating_System
was	O
initially	O
designed	O
as	O
an	O
educational	O
app	O
to	O
help	O
university	O
students	O
improve	O
their	O
English	O
skills	O
.	O
</s>
<s>
In	O
early	O
2018	O
,	O
a	O
security	O
researcher	O
at	O
Google	B-Application
discovered	O
a	O
vulnerability	O
in	O
Grammarly	B-Operating_System
's	O
browser	B-Protocol
extension	I-Protocol
beta	O
version	O
,	O
which	O
exposed	O
authentication	O
tokens	O
to	O
websites	O
and	O
potentially	O
allowed	O
them	O
to	O
access	O
the	O
users	O
 '	O
documents	O
and	O
other	O
data	O
.	O
</s>
<s>
Later	O
in	O
December	O
,	O
Grammarly	B-Operating_System
launched	O
a	O
bug	O
bounty	O
program	O
on	O
HackerOne	O
,	O
offering	O
a	O
100,000	O
reward	O
to	O
the	O
first	O
white	O
hat	O
hacker	O
to	O
access	O
a	O
specific	O
document	O
on	O
the	O
company	O
's	O
server	O
.	O
</s>
<s>
Grammarly	B-Operating_System
effectively	O
cut	O
all	O
business	O
relations	O
with	O
users	O
in	O
Russia	O
and	O
Belarus	O
in	O
response	O
to	O
the	O
2022	O
Russian	O
invasion	O
of	O
Ukraine	O
.	O
</s>
<s>
Reviewers	O
have	O
praised	O
Grammarly	B-Operating_System
for	O
its	O
ease	O
of	O
use	O
and	O
helpful	O
suggestions	O
,	O
considering	O
it	O
worthwhile	O
despite	O
its	O
relatively	O
high	O
price	O
and	O
lack	O
of	O
offline	O
functionality	O
.	O
</s>
<s>
However	O
,	O
some	O
users	O
have	O
criticized	O
Grammarly	B-Operating_System
for	O
incorrect	O
suggestions	O
,	O
ignorance	O
of	O
tone	O
and	O
context	O
,	O
and	O
reduction	O
of	O
writers	O
 '	O
freedom	O
of	O
expression	O
.	O
</s>
