<s>
Silverpush	B-Application
is	O
a	O
Singapore	O
based	O
marketing	O
technology	O
solutions	O
provider	O
.	O
</s>
<s>
Silverpush	B-Application
's	O
in-video	O
context	O
detection	O
platform	O
uses	O
artificial	O
intelligence	O
and	O
computer	O
vision	O
to	O
accurately	O
identify	O
in-video	O
contexts	O
,	O
including	O
logos	O
,	O
faces	O
,	O
objects	O
,	O
actions	O
,	O
and	O
scenes	O
,	O
to	O
enable	O
contextual	O
video	O
ad	O
placements	O
in	O
line	O
with	O
content	O
users	O
are	O
actively	O
engaging	O
with	O
.	O
</s>
<s>
In	O
April	O
2019	O
,	O
Silverpush	B-Application
introduced	O
Parallels	O
,	O
an	O
ad	O
sync	O
technology	O
that	O
syncs	O
ads	O
with	O
physical	O
events	O
in	O
real-time	O
.	O
</s>
<s>
In	O
November	O
2019	O
,	O
SilverPush	B-Application
launched	O
Mirrors	O
,	O
an	O
artificial	O
intelligence-driven	O
technology	O
that	O
aims	O
to	O
deliver	O
more	O
relevant	O
in-video	O
ads	O
by	O
way	O
of	O
analysing	O
what	O
appears	O
in	O
the	O
content	O
.	O
</s>
<s>
In	O
May	O
2020	O
,	O
Silverpush	B-Application
launched	O
Mirrors	O
Safe	O
,	O
an	O
AI-powered	O
brand	O
suitability	O
platform	O
.	O
</s>
<s>
In	O
April	O
2014	O
,	O
Geektime	O
reported	O
that	O
SilverPush	B-Application
had	O
raised	O
$1.5	O
million	O
in	O
funding	O
to	O
increase	O
global	O
reach	O
.	O
</s>
<s>
In	O
February	O
2019	O
,	O
SilverPush	B-Application
raised	O
$5	O
million	O
in	O
Series	O
B	O
from	O
FreakOut	O
Holdings	O
.	O
</s>
<s>
The	O
use	O
of	O
SilverPush	B-Application
to	O
track	O
users	O
across	O
multiple	O
devices	O
has	O
privacy	O
implications	O
and	O
allows	O
for	O
more	O
detailed	O
tracking	O
of	O
users	O
.	O
</s>
<s>
In	O
July	O
2014	O
,	O
TechCrunch	O
reported	O
that	O
SilverPush	B-Application
was	O
using	O
"	O
ultrasonic	O
inaudible	O
sounds	O
"	O
called	O
"	O
audio	B-Application
beacons	I-Application
"	O
along	O
with	O
cookies	B-Application
to	O
reliably	O
track	O
users	O
across	O
multiple	O
devices	O
and	O
that	O
devices	O
with	O
an	O
app	O
containing	O
the	O
SilverPush	B-Application
SDK	O
are	O
constantly	O
listening	O
for	O
audio	B-Application
beacons	I-Application
.	O
</s>
<s>
In	O
April	O
2015	O
,	O
SilverPush	B-Application
claimed	O
67	O
apps	O
were	O
using	O
its	O
code	O
.	O
</s>
<s>
In	O
October	O
2015	O
,	O
the	O
Center	O
for	O
Democracy	O
and	O
Technology	O
submitted	O
comments	O
to	O
the	O
Federal	O
Trade	O
Commission	O
(	O
FTC	O
)	O
regarding	O
SilverPush	B-Application
's	O
cross-device	B-Application
tracking	I-Application
technology	O
.	O
</s>
<s>
In	O
March	O
2016	O
,	O
the	O
FTC	O
issued	O
warning	O
letters	O
to	O
12	O
app	O
developers	O
using	O
SilverPush	B-Application
code	O
in	O
their	O
apps	O
.	O
</s>
<s>
Shortly	O
after	O
the	O
FTC	O
warning	O
,	O
SilverPush	B-Application
made	O
an	O
official	O
statement	O
that	O
they	O
are	O
ending	O
the	O
Unique	B-Application
Audio	I-Application
Beacon	I-Application
service	O
.	O
</s>
<s>
However	O
,	O
as	O
of	O
21	O
March	O
2016	O
,	O
SilverPush	B-Application
is	O
still	O
advertising	O
Unique	B-Application
Audio	I-Application
Beacon	I-Application
on	O
their	O
website	O
.	O
</s>
<s>
In	O
November	O
2016	O
,	O
researchers	O
from	O
UCL	O
,	O
UCSB	O
and	O
PoliMI	O
demonstrated	O
the	O
security	O
and	O
privacy	O
implications	O
of	O
the	O
ultrasound	B-Application
cross-device	I-Application
tracking	I-Application
(	O
uXDT	O
)	O
technology	O
used	O
by	O
SilverPush	B-Application
.	O
</s>
<s>
The	O
most	O
notable	O
of	O
their	O
attacks	O
uses	O
uXDT-enabled	O
applications	O
to	O
deanonymize	O
Tor	B-Application
users	O
.	O
</s>
<s>
In	O
May	O
2017	O
SilverPush	B-Application
technology	O
was	O
again	O
the	O
subject	O
of	O
research	O
:	O
"	O
A	O
team	O
of	O
researchers	O
from	O
the	O
Brunswick	O
Technical	O
University	O
in	O
Germany	O
discovered	O
 [ 234 ] 	O
Android	O
apps	O
that	O
employ	O
ultrasonic	O
tracking	O
beacons	O
to	O
track	O
users	O
and	O
their	O
nearby	O
environment	O
.	O
</s>
<s>
Their	O
research	O
paper	O
focused	O
on	O
the	O
technology	O
of	O
ultrasound	B-Application
cross-device	I-Application
tracking	I-Application
(	O
uXDT	O
)	O
.	O
"	O
</s>
