<s>
CyberBerkut	B-Operating_System
(	O
,	O
)	O
is	O
a	O
modern	O
organized	O
group	O
of	O
pro-Russian	O
hacktivists	O
.	O
</s>
<s>
To	O
further	O
this	O
aim	O
,	O
CyberBerkut	B-Operating_System
activists	O
targeted	O
the	O
"	O
Right	O
Sector	O
"	O
IT	O
resources	O
.	O
</s>
<s>
CyberBerkut	B-Operating_System
targets	O
included	O
NATO	O
and	O
its	O
allies	O
.	O
</s>
<s>
Publication	O
of	O
video	O
materials	O
that	O
are	O
blocked	O
on	O
YouTube	B-General_Concept
.	I-General_Concept
</s>
<s>
Repeated	O
blocking	O
of	O
CB	O
's	O
Facebook	B-Application
pages	O
,	O
although	O
new	O
ones	O
have	O
been	O
made	O
on	O
the	O
following	O
day	O
.	O
</s>
<s>
Likely	O
in	O
response	O
to	O
attacking	O
the	O
websites	O
of	O
Greystone	O
Limited	O
and	O
Triple	O
Canopy	O
,	O
CyberBerkut	B-Operating_System
's	O
websites	O
have	O
been	O
temporarily	O
disrupted	O
.	O
</s>
<s>
Arrests	O
of	O
people	O
suspected	O
in	O
relation	O
to	O
CyberBerkut	B-Operating_System
.	O
</s>
