<s>
iCloud	B-Application
is	O
a	O
cloud	B-General_Concept
service	I-General_Concept
developed	O
by	O
Apple	O
Inc	O
.	O
</s>
<s>
Launched	O
on	O
October	O
12	O
,	O
2011	O
,	O
iCloud	B-Application
enables	O
users	O
to	O
store	O
and	O
sync	O
data	O
across	O
devices	O
,	O
including	O
Apple	B-Operating_System
Mail	I-Operating_System
,	O
Apple	B-Operating_System
Calendar	I-Operating_System
,	O
Apple	B-Application
Photos	I-Application
,	O
Apple	B-Operating_System
Notes	I-Operating_System
,	O
contacts	O
,	O
settings	O
,	O
backups	O
,	O
and	O
files	B-Operating_System
,	O
to	O
collaborate	O
with	O
other	O
users	O
,	O
and	O
track	O
assets	O
through	O
Find	B-Operating_System
My	I-Operating_System
.	O
</s>
<s>
It	O
is	O
built	O
into	O
iOS	B-Application
,	O
iPadOS	B-Operating_System
,	O
watchOS	B-Device
,	O
tvOS	B-Operating_System
and	O
macOS	B-Application
and	O
may	O
additionally	O
be	O
accessed	O
through	O
a	O
limited	O
web	B-Application
interface	I-Application
and	O
Windows	B-Application
application	O
.	O
</s>
<s>
iCloud	B-Application
offers	O
users	O
5	O
GB	O
of	O
free	O
storage	O
which	O
may	O
be	O
upgraded	O
to	O
50	O
GB	O
,	O
200	O
GB	O
,	O
or	O
2	O
TB	O
through	O
optional	O
paid	O
plans	O
.	O
</s>
<s>
All	O
paid	O
plans	O
include	O
iCloud+	O
which	O
additionally	O
provides	O
Private	O
Relay	O
,	O
Hide	O
My	O
Email	O
and	O
Custom	O
Email	O
Domain	O
.	O
</s>
<s>
In	O
December	O
2022	O
,	O
Apple	O
rolled	O
out	O
optional	O
end-to-end	O
encryption	O
for	O
all	O
iCloud	B-Application
data	O
(	O
including	O
iCloud	B-Application
Photos	O
,	O
iCloud	B-Application
Drive	O
,	O
and	O
more	O
)	O
,	O
with	O
the	O
exception	O
of	O
Calendar	B-Operating_System
,	O
Contacts	O
,	O
and	O
Mail	O
,	O
which	O
rely	O
on	O
legacy	O
sync	O
technologies	O
for	O
compatibility	O
with	O
third-party	O
apps	O
(	O
CalDav	B-Protocol
,	O
CardDav	B-Protocol
,	O
IMAP	B-Protocol
)	O
.	O
</s>
<s>
iCloud	B-Application
was	O
announced	O
on	O
May	O
31	O
,	O
2011	O
,	O
in	O
a	O
press	O
release	O
.	O
</s>
<s>
On	O
June	O
6	O
,	O
2011	O
,	O
during	O
the	O
WWDC	O
2011	O
keynote	B-Protocol
,	O
Steve	O
Jobs	O
announced	O
that	O
iCloud	B-Application
would	O
replace	O
MobileMe	B-Application
,	O
which	O
had	O
been	O
widely	O
seen	O
as	O
a	O
"	O
failure	O
"	O
,	O
a	O
fact	O
which	O
Steve	O
Jobs	O
acknowledged	O
during	O
the	O
announcement	O
.	O
</s>
<s>
iCloud	B-Application
was	O
released	O
on	O
October	O
12	O
,	O
2011	O
,	O
and	O
MobileMe	B-Application
was	O
discontinued	O
on	O
June	O
30	O
,	O
2012	O
.	O
</s>
<s>
Previous	O
MobileMe	B-Application
users	O
could	O
keep	O
their	O
@mac	B-Application
.com	O
and	O
@me	O
.com	O
email	O
addresses	O
as	O
aliases	O
to	O
their	O
new	O
@icloud	O
.com	O
address	O
.	O
</s>
<s>
Earlier	O
versions	O
included	O
Back	B-Operating_System
to	I-Operating_System
My	I-Operating_System
Mac	I-Operating_System
,	O
which	O
was	O
previously	O
part	O
of	O
MobileMe	B-Application
.	O
</s>
<s>
iCloud	B-Application
had	O
20million	O
users	O
within	O
a	O
week	O
after	O
launch	O
.	O
</s>
<s>
It	O
received	O
early	O
criticism	O
for	O
bugs	O
,	O
especially	O
with	O
Core	B-Application
Data	I-Application
syncing	O
.	O
</s>
<s>
These	O
issues	O
were	O
addressed	O
in	O
iOS	B-Operating_System
7	I-Operating_System
and	O
OS	B-Operating_System
X	I-Operating_System
Mavericks	I-Operating_System
.	O
</s>
<s>
At	O
launch	O
,	O
iCloud	B-Application
was	O
partly	O
hosted	O
on	O
Amazon	B-Application
Web	I-Application
Services	I-Application
and	O
Microsoft	B-Application
Azure	I-Application
.	O
</s>
<s>
In	O
2016	O
,	O
Apple	O
replaced	O
Azure	O
with	O
Google	B-General_Concept
Cloud	I-General_Concept
Platform	I-General_Concept
.	O
</s>
<s>
In	O
2021	O
,	O
The	O
Information	O
reported	O
that	O
Apple	O
was	O
storing	O
8	O
million	O
TB	O
of	O
data	O
on	O
Google	O
's	O
cloud	B-General_Concept
,	O
and	O
was	O
on	O
track	O
to	O
spend	O
$300	O
million	O
that	O
year	O
.	O
</s>
<s>
In	O
June	O
2019	O
,	O
iCloud	B-Application
was	O
introduced	O
to	O
Windows	B-Application
10	O
via	O
the	B-Application
Microsoft	I-Application
Store	I-Application
.	O
</s>
<s>
In	O
June	O
2021	O
,	O
Apple	O
introduced	O
iCloud+	O
,	O
which	O
added	O
Private	O
Relay	O
,	O
Hide	O
My	O
Email	O
and	O
Custom	O
Email	O
Domain	O
to	O
paid	O
users	O
of	O
the	O
services	O
,	O
as	O
well	O
as	O
an	O
unlimited	O
storage	O
limit	O
for	O
video	O
from	O
cameras	O
added	O
through	O
HomeKit	B-Operating_System
Secure	O
Video	O
.	O
</s>
<s>
iCloud	B-Application
is	O
a	O
free	O
service	O
,	O
and	O
come	O
with	O
5	O
GB	O
of	O
cloud	B-General_Concept
storage	O
.	O
</s>
<s>
Users	O
can	O
subscribe	O
to	O
iCloud+	O
for	O
additional	O
storage	O
up	O
to	O
2TB	O
(	O
or	O
4TB	O
for	O
users	O
of	O
Apple	O
One	O
Premier	O
plan	O
who	O
also	O
buy	O
an	O
additional	O
2	O
TB	O
of	O
storage	O
)	O
.	O
</s>
<s>
Some	O
of	O
iCloud	B-Application
's	O
features	O
are	O
accessible	O
not	O
only	O
through	O
apps	O
built	O
into	O
iOS	B-Application
,	O
iPadOS	B-Operating_System
,	O
watchOS	B-Device
,	O
tvOS	B-Operating_System
and	O
macOS	B-Application
but	O
also	O
on	O
iCloud.com	B-Application
.	O
</s>
<s>
iCloud	B-Application
Mail	O
,	O
a	O
free	O
email	O
address	O
(	O
@icloud	O
.com	O
)	O
which	O
supports	O
Push	B-General_Concept
email	I-General_Concept
,	O
a	O
webmail	O
interface	O
,	O
and	O
IMAP	B-Protocol
sync	O
to	O
third-party	O
clients	O
;	O
</s>
<s>
Contacts	O
and	O
calendar	B-Operating_System
syncing	O
,	O
and	O
calendar	B-Operating_System
sharing	O
features	O
,	O
as	O
well	O
as	O
support	O
for	O
CardDAV	B-Protocol
and	O
CalDAV	B-Protocol
;	O
</s>
<s>
iCloud	B-Application
Drive	O
,	O
a	O
cloud	B-General_Concept
storage	O
and	O
syncing	O
feature	O
;	O
</s>
<s>
iCloud	B-Application
Photos	O
,	O
which	O
stores	O
and	O
syncs	O
pictures	O
in	O
full-resolution	O
;	O
</s>
<s>
Pages	B-Application
,	O
Keynote	B-Protocol
,	O
and	O
Numbers	B-Operating_System
,	O
allowing	O
real-time	O
collaboration	O
on	O
both	O
native	O
apps	O
and	O
the	O
web	O
;	O
</s>
<s>
Find	B-Operating_System
My	I-Operating_System
,	O
which	O
lets	O
users	O
find	O
their	O
Apple	B-Operating_System
devices	I-Operating_System
or	O
other	O
Find	O
My-enabled	O
devices	O
,	O
and	O
remotely	O
erase	O
lost	O
Apple	B-Operating_System
devices	I-Operating_System
;	O
</s>
<s>
iCloud	B-Application
is	O
also	O
built-in	O
as	O
a	O
backend	O
to	O
many	O
Apple	O
apps	O
and	O
system	O
features	O
,	O
where	O
it	O
can	O
sync	O
users	O
 '	O
data	O
and	O
settings	O
.	O
</s>
<s>
Apple	B-Application
Books	I-Application
(	O
books	O
,	O
highlights	O
,	O
bookmarks	O
and	O
annotations	O
)	O
;	O
</s>
<s>
Apple	B-Operating_System
Home	I-Operating_System
(	O
settings	O
and	O
paired	O
devices	O
)	O
;	O
</s>
<s>
Apple	B-Operating_System
Music	I-Operating_System
(	O
with	O
a	O
feature	O
called	O
iCloud	B-Application
Music	O
Library	O
)	O
;	O
</s>
<s>
Apple	B-Operating_System
Wallet	I-Operating_System
(	O
passes	O
and	O
credit	O
cards	O
)	O
;	O
</s>
<s>
Safari	B-Application
(	O
syncing	O
bookmarks	O
and	O
history	O
)	O
;	O
</s>
<s>
Third-party	O
iOS	B-Application
and	O
macOS	B-Application
app	O
developers	O
can	O
implement	O
iCloud	B-Application
functionality	O
in	O
their	O
apps	O
through	O
the	O
iCloud	B-Application
API	B-Application
.	O
</s>
<s>
iCloud	B-Application
allows	O
users	O
to	O
back	O
up	O
the	O
settings	O
and	O
data	O
on	O
iOS	B-Operating_System
devices	I-Operating_System
running	O
iOS	B-Operating_System
5	I-Operating_System
or	O
later	O
.	O
</s>
<s>
In	O
case	O
of	O
a	O
malfunction	O
of	O
any	O
Apple	B-Operating_System
device	I-Operating_System
,	O
during	O
the	O
restoration	O
process	O
,	O
iCloud	B-Application
offers	O
to	O
restore	O
all	O
data	O
along	O
with	O
App	O
data	O
only	O
if	O
the	O
device	O
was	O
synced	O
to	O
iCloud	B-Application
and	O
backed	O
up	O
.	O
</s>
<s>
Prior	O
to	O
iOS	B-Application
and	O
iPadOS	B-Operating_System
13	O
,	O
Find	B-Operating_System
my	I-Operating_System
iPhone	I-Operating_System
and	O
Find	B-Operating_System
My	I-Operating_System
Friends	I-Operating_System
stored	O
data	O
in	O
iCloud	B-Application
before	O
merging	O
into	O
Find	B-Operating_System
My	I-Operating_System
.	O
</s>
<s>
Find	B-Operating_System
My	I-Operating_System
enables	O
users	O
to	O
track	O
the	O
location	O
of	O
iOS	B-Application
,	O
iPadOS	B-Operating_System
,	O
macOS	B-Application
,	O
watchOS	B-Device
devices	O
,	O
AirPods	B-Operating_System
,	O
AirTags	B-Operating_System
and	O
a	O
number	O
of	O
supported	O
third-party	O
accessories	O
through	O
a	O
connected	O
iCloud	B-Application
account	O
.	O
</s>
<s>
Users	O
can	O
also	O
share	O
their	O
GPS	O
locations	O
to	O
others	O
with	O
Apple	B-Operating_System
devices	I-Operating_System
and	O
view	O
the	O
location	O
of	O
others	O
who	O
choose	O
to	O
share	O
their	O
location	O
.	O
</s>
<s>
The	O
Send	O
Last	O
Location	O
feature	O
,	O
which	O
utilizes	O
iCloud	B-Application
,	O
can	O
be	O
optionally	O
enabled	O
to	O
automatically	O
send	O
the	O
location	O
of	O
the	O
device	O
to	O
Apple	O
when	O
the	O
battery	O
is	O
low	O
.	O
</s>
<s>
iCloud	B-Application
Keychain	O
is	O
a	O
password	O
manager	O
developed	O
by	O
Apple	O
that	O
syncs	O
passwords	O
across	O
devices	O
and	O
suggests	O
secure	O
ones	O
when	O
creating	O
new	O
accounts	O
.	O
</s>
<s>
iCloud	B-Application
Keychain	O
backups	O
provide	O
different	O
security	O
guarantees	O
than	O
traditional	O
iCloud	B-Application
backups	O
.	O
</s>
<s>
This	O
is	O
because	O
iCloud	B-Application
Keychain	O
uses	O
"	O
end-to-end	O
encryption	O
"	O
,	O
meaning	O
that	O
iCloud	B-Application
Keychain	O
backups	O
are	O
designed	O
so	O
that	O
the	O
provider	O
does	O
not	O
have	O
access	O
to	O
unencrypted	O
data	O
.	O
</s>
<s>
iTunes	B-Operating_System
Match	I-Operating_System
debuted	O
on	O
November	O
14	O
,	O
2011	O
.	O
</s>
<s>
For	O
an	O
annual	O
fee	O
,	O
customers	O
can	O
scan	O
and	O
match	O
tracks	O
in	O
their	O
iTunes	B-Operating_System
music	O
library	O
,	O
including	O
tracks	O
copied	O
from	O
CDs	O
or	O
other	O
sources	O
,	O
with	O
tracks	O
in	O
the	O
iTunes	B-Operating_System
Store	O
,	O
so	O
customers	O
do	O
not	O
have	O
to	O
repurchase	O
said	O
tracks	O
.	O
</s>
<s>
Customers	O
may	O
download	O
up	O
to	O
100,000	O
tracks	O
in	O
256kbit/s	O
DRM-free	O
AAC	B-Application
file	I-Application
format	O
that	O
matches	O
tracks	O
in	O
any	O
supported	O
audio	O
file	O
formats	O
in	O
customers	O
 '	O
iTunes	B-Operating_System
libraries	O
,	O
including	O
ALAC	B-Algorithm
and	O
MP3	B-Application
.	O
</s>
<s>
Customers	O
also	O
have	O
the	O
choice	O
to	O
keep	O
their	O
original	O
copies	O
stored	O
on	O
their	O
computers	O
or	O
have	O
them	O
replaced	O
by	O
copies	O
from	O
the	O
iTunes	B-Operating_System
Store	O
.	O
</s>
<s>
Any	O
music	O
not	O
available	O
in	O
the	O
iTunes	B-Operating_System
Store	O
is	O
uploaded	O
for	O
download	O
onto	O
customers	O
 '	O
other	O
supported	O
devices	O
and	O
computers	O
;	O
doing	O
this	O
will	O
not	O
take	O
storage	O
from	O
the	O
customers	O
 '	O
iCloud	B-Application
's	O
storage	O
allowance	O
.	O
</s>
<s>
Any	O
such	O
tracks	O
stored	O
in	O
the	O
higher	O
quality	O
lossless	O
audio	O
ALAC	B-Algorithm
,	O
or	O
original	O
uncompressed	O
PCM	B-Algorithm
formats	O
,	O
WAV	O
and	O
AIFF	O
,	O
are	O
transcoded	B-Algorithm
to	O
256kbit/s	O
DRM-free	O
AAC	B-Application
format	I-Application
before	O
uploading	O
to	O
the	O
customers	O
 '	O
iCloud	B-Application
storage	O
account	O
,	O
leaving	O
the	O
original	O
higher	O
quality	O
local	O
files	B-Operating_System
in	O
their	O
original	O
format	O
.	O
</s>
<s>
If	O
a	O
user	O
stops	O
paying	O
for	O
the	O
iTunes	B-Operating_System
Match	I-Operating_System
service	O
,	O
all	O
copies	O
of	O
the	O
DRM-free	O
AAC	B-Application
iTunes	B-Operating_System
Store	O
versions	O
of	O
tracks	O
that	O
have	O
already	O
been	O
downloaded	O
onto	O
any	O
device	O
can	O
be	O
kept	O
,	O
whether	O
on	O
iOS	B-Operating_System
devices	I-Operating_System
or	O
computers	O
.	O
</s>
<s>
From	O
iOS	B-Operating_System
7	I-Operating_System
and	O
OS	B-Operating_System
X	I-Operating_System
Mavericks	I-Operating_System
,	O
the	O
iTunes	B-Operating_System
Radio	I-Operating_System
function	O
will	O
be	O
available	O
across	O
devices	O
,	O
including	O
integration	O
with	O
the	O
Music	O
app	O
,	O
both	O
on	O
portable	O
iOS	B-Operating_System
devices	I-Operating_System
and	O
Apple	B-Device
TV	I-Device
(	O
2nd	O
generation	O
onwards	O
)	O
,	O
as	O
well	O
as	O
inside	O
the	O
iTunes	B-Operating_System
app	O
on	O
Macintosh	B-Device
and	O
Windows	B-Application
computers	I-Application
.	O
</s>
<s>
The	O
streaming	O
Genius	O
shuffle	O
is	O
not	O
available	O
in	O
current	O
versions	O
of	O
iOS	B-Application
but	O
is	O
available	O
in	O
iTunes	B-Operating_System
on	O
the	O
Mac	B-Device
.	O
</s>
<s>
On	O
January	O
28	O
,	O
2016	O
,	O
ad-free	O
iTunes	B-Operating_System
Radio	I-Operating_System
was	O
discontinued	O
and	O
is	O
therefore	O
no	O
longer	O
part	O
of	O
iTunes	B-Operating_System
Match	I-Operating_System
.	O
</s>
<s>
,	O
iTunes	B-Operating_System
Match	I-Operating_System
is	O
available	O
in	O
116	O
countries	O
,	O
while	O
iTunes	B-Operating_System
in	O
the	O
Cloud	B-General_Concept
is	O
available	O
in	O
155	O
countries	O
.	O
</s>
<s>
During	O
the	O
2013	O
Apple	O
Worldwide	O
Developers	O
Conference	O
(	O
WWDC	O
)	O
keynote	B-Protocol
speech	O
,	O
iWork	B-Application
for	O
iCloud	B-Application
was	O
announced	O
for	O
release	O
at	O
the	O
same	O
time	O
as	O
the	O
next	O
version	O
of	O
the	O
app	O
versions	O
of	O
iWork	B-Application
later	O
in	O
the	O
year	O
.	O
</s>
<s>
The	O
three	O
apps	O
for	O
both	O
iOS	B-Application
and	O
macOS	B-Application
that	O
form	O
Apple	O
's	O
iWork	B-Application
suite	O
(	O
Pages	B-Application
,	O
Numbers	B-Operating_System
,	O
and	O
Keynote	B-Protocol
)	O
,	O
will	O
be	O
made	O
available	O
on	O
a	O
web	B-Application
interface	I-Application
(	O
named	O
as	O
Pages	B-Application
for	O
iCloud	B-Application
,	O
Numbers	B-Operating_System
for	O
iCloud	B-Application
,	O
and	O
Keynote	B-Protocol
for	O
iCloud	B-Application
respectively	O
)	O
,	O
and	O
accessed	O
via	O
the	O
iCloud	B-Application
website	O
under	O
each	O
user	O
's	O
iCloud	B-Application
Apple	B-General_Concept
ID	I-General_Concept
login	O
.	O
</s>
<s>
They	O
will	O
also	O
sync	O
with	O
the	O
user	O
's	O
iOS	B-Application
and	O
macOS	B-Application
versions	O
of	O
the	O
app	O
,	O
should	O
they	O
have	O
them	O
,	O
again	O
via	O
their	O
iCloud	B-Application
Apple	B-General_Concept
ID	I-General_Concept
.	O
</s>
<s>
This	O
allows	O
the	O
user	O
to	O
edit	O
and	O
create	O
documents	O
on	O
the	O
web	O
,	O
using	O
one	O
of	O
the	O
supported	O
browsers	O
:	O
Safari	B-Application
,	O
Chrome	B-Application
,	O
and	O
Microsoft	B-Application
Edge	I-Application
.	O
</s>
<s>
It	O
also	O
means	O
that	O
Microsoft	B-Application
Windows	I-Application
users	O
now	O
have	O
access	O
to	O
these	O
native	O
–	O
previously	O
only	O
Apple	B-Operating_System
device	I-Operating_System
–	O
document	O
editing	O
tools	O
,	O
via	O
the	O
web	B-Application
interface	I-Application
.	O
</s>
<s>
Photo	O
Stream	O
is	O
a	O
service	O
supplied	O
with	O
the	O
basic	O
iCloud	B-Application
service	O
which	O
allows	O
users	O
to	O
store	O
the	O
most	O
recent	O
1,000	O
photos	O
on	O
the	O
iCloud	B-Application
servers	O
for	O
up	O
to	O
30	O
days	O
free	O
of	O
charge	O
.	O
</s>
<s>
When	O
a	O
photo	O
is	O
taken	O
on	O
a	O
device	O
with	O
Photo	O
Stream	O
enabled	O
,	O
it	O
is	O
automatically	O
uploaded	O
to	O
the	O
iCloud	B-Application
servers	O
.	O
</s>
<s>
Photo	O
Stream	O
installed	O
on	O
a	O
Mac	B-Device
or	O
Windows	B-Application
desktop	O
computer	O
includes	O
an	O
option	O
to	O
have	O
all	O
photos	O
permanently	O
saved	O
on	O
that	O
device	O
.	O
</s>
<s>
The	O
service	O
is	O
also	O
integrated	O
with	O
Apple	B-Device
TV	I-Device
,	O
allowing	O
users	O
to	O
view	O
their	O
recent	O
photos	O
wirelessly	O
on	O
their	O
HDTV	B-Device
.	O
</s>
<s>
iCloud	B-Application
Photos	O
is	O
a	O
feature	O
on	O
iOS	B-Operating_System
8.1	I-Operating_System
or	O
later	O
and	O
OS	B-Device
X	I-Device
Yosemite	I-Device
(	O
version	O
10.10	O
)	O
or	O
later	O
,	O
plus	O
web	B-Application
app	I-Application
access	O
.	O
</s>
<s>
Users	O
can	O
access	O
their	O
iCloud	B-Application
Photos	O
on	O
supported	O
devices	O
via	O
the	O
new	O
Photos	O
app	O
when	O
available	O
or	O
via	O
the	O
iCloud	B-Application
Photos	O
web	B-Application
app	I-Application
at	O
iCloud.com,	O
which	O
helps	O
limit	O
the	O
amount	O
of	O
local	O
storage	O
each	O
device	O
needs	O
to	O
use	O
to	O
store	O
photos	O
(	O
particularly	O
those	O
with	O
smaller	O
storage	O
capacities	O
)	O
by	O
storing	O
lower-resolution	O
versions	O
on	O
the	O
device	O
,	O
with	O
the	O
user	O
having	O
the	O
option	O
to	O
keep	O
some/all	O
stored	O
locally	O
at	O
a	O
higher	O
resolution	O
.	O
</s>
<s>
Since	O
its	O
introduction	O
in	O
2011	O
,	O
each	O
account	O
has	O
5	O
GB	O
of	O
free	O
storage	O
for	O
owners	O
of	O
either	O
an	O
iOS	B-Operating_System
device	I-Operating_System
using	O
iOS	B-Operating_System
5.x	I-Operating_System
or	O
later	O
,	O
or	O
a	O
Mac	B-Device
using	O
OS	B-Application
X	I-Application
Lion	I-Application
10.7	I-Application
or	O
later	O
.	O
</s>
<s>
The	O
amount	O
of	O
storage	O
is	O
shared	O
across	O
all	O
devices	O
per	O
iCloud	B-Application
Apple	B-General_Concept
ID	I-General_Concept
.	O
</s>
<s>
Several	O
native	O
features	O
of	O
iCloud	B-Application
use	O
each	O
user	O
's	O
iCloud	B-Application
storage	O
allowance	O
,	O
specifically	O
,	O
Backup	O
and	O
restore	O
,	O
and	O
email	O
,	O
Contacts	O
,	O
and	O
Calendars	B-Operating_System
.	O
</s>
<s>
On	O
Macs	O
,	O
users	O
can	O
also	O
store	O
most	O
filetypes	O
into	O
iCloud	B-Application
folders	O
of	O
their	O
choosing	O
,	O
rather	O
than	O
only	O
storing	O
them	O
locally	O
on	O
the	O
machine	O
.	O
</s>
<s>
While	O
Photo	O
Stream	O
uses	O
the	O
iCloud	B-Application
servers	O
,	O
usage	O
does	O
not	O
come	O
out	O
of	O
the	O
user	O
's	O
iCloud	B-Application
storage	O
allowance	O
.	O
</s>
<s>
This	O
is	O
also	O
true	O
for	O
iTunes	B-Operating_System
Match	I-Operating_System
music	O
content	O
,	O
even	O
for	O
music	O
that	O
is	O
not	O
sold	O
in	O
the	O
iTunes	B-Operating_System
Store	O
and	O
which	O
gets	O
uploaded	O
into	O
iCloud	B-Application
storage	O
,	O
it	O
does	O
not	O
count	O
against	O
the	O
user	O
's	O
allowance	O
.	O
</s>
<s>
Other	O
apps	O
can	O
optionally	O
integrate	O
app	O
storage	O
out	O
of	O
the	O
user	O
's	O
iCloud	B-Application
storage	O
allowance	O
.	O
</s>
<s>
Not	O
all	O
of	O
a	O
user	O
's	O
content	O
counts	O
as	O
part	O
of	O
their	O
iCloud	B-Application
storage	O
allowance	O
.	O
</s>
<s>
Apple	O
can	O
keep	O
a	O
permanent	O
track	O
of	O
every	O
purchase	O
a	O
user	O
makes	O
under	O
their	O
Apple	B-General_Concept
ID	I-General_Concept
account	O
,	O
and	O
by	O
associating	O
each	O
piece	O
of	O
content	O
with	O
the	O
user	O
,	O
it	O
means	O
only	O
one	O
copy	O
of	O
every	O
Store	O
item	O
is	O
needed	O
to	O
be	O
kept	O
on	O
Apple	O
's	O
servers	O
.	O
</s>
<s>
For	O
items	O
bought	O
from	O
the	O
iTunes	B-Operating_System
Store	O
(	O
music	O
,	O
music	O
videos	O
,	O
movies	O
,	O
TV	O
shows	O
)	O
,	O
Apple	B-Application
Books	I-Application
Store	O
(	O
books	O
)	O
,	O
or	O
App	B-Application
Store	I-Application
(	O
iOS	B-Application
apps	I-Application
)	O
,	O
this	O
uses	O
a	O
service	O
Apple	O
call	O
iTunes	B-Operating_System
in	O
the	O
Cloud	B-General_Concept
,	O
allowing	O
the	O
user	O
to	O
automatically	O
,	O
or	O
manually	O
if	O
preferred	O
,	O
re-download	O
any	O
of	O
their	O
previous	O
purchases	O
on	O
to	O
a	O
Mac	B-Device
,	O
PC	O
,	O
or	O
iOS	B-Operating_System
device	I-Operating_System
.	O
</s>
<s>
Downloaded	O
(	O
or	O
streamed	O
,	O
provided	O
the	O
user	O
is	O
connected	O
to	O
the	O
Internet	O
)	O
iTunes	B-Operating_System
Store	O
content	O
can	O
be	O
used	O
across	O
all	O
these	O
devices	O
,	O
however	O
,	O
while	O
Apple	B-Application
Books	I-Application
Store	O
and	O
App	B-Application
Store	I-Application
content	O
can	O
be	O
downloaded	O
to	O
Macs	O
and	O
PCs	O
for	O
syncing	O
to	O
iOS	B-Operating_System
devices	I-Operating_System
,	O
only	O
iOS	B-Application
and	O
Mac	B-Device
devices	O
(	O
and	O
their	O
respective	O
apps	O
)	O
can	O
be	O
used	O
to	O
read	O
the	O
books	O
.	O
</s>
<s>
Similarly	O
,	O
macOS	B-Application
apps	O
purchased	O
from	O
the	O
Mac	B-Device
App	B-Application
Store	I-Application
are	O
also	O
linked	O
to	O
the	O
Apple	B-General_Concept
ID	I-General_Concept
they	O
were	O
purchased	O
through	O
and	O
can	O
be	O
downloaded	O
to	O
any	O
Mac	B-Device
using	O
the	O
same	O
Apple	B-General_Concept
ID	I-General_Concept
.	O
</s>
<s>
Also	O
,	O
when	O
a	O
user	O
registers	O
any	O
new	O
device	O
,	O
all	O
previously	O
bought	O
Store	O
content	O
can	O
be	O
downloaded	O
from	O
the	O
Store	O
servers	O
or	O
non-Store	O
content	O
from	O
the	O
iCloud	B-Application
servers	O
.	O
</s>
<s>
Audiobooks	O
and	O
their	O
metadata	O
fields	O
from	O
non-Apple	O
purchased	O
sources	O
are	O
not	O
synced	O
across	O
devices	O
(	O
macOS	B-Application
or	O
iOS	B-Application
)	O
inside	O
the	O
Apple	B-Application
Books	I-Application
apps	O
,	O
and	O
nor	O
does	O
the	O
metadata	O
from	O
non-Apple	O
purchased	O
books	O
(	O
in	O
Ebook	O
or	O
PDF	O
format	O
)	O
.	O
</s>
<s>
There	O
remains	O
a	O
syncing	O
mismatch	O
on	O
some	O
types	O
of	O
media	O
,	O
between	O
Apple-purchased	O
content	O
and	O
non-Apple	O
purchased	O
content	O
that	O
remains	O
in	O
effect	O
for	O
iCloud	B-Application
users	O
.	O
</s>
<s>
iCloud	B-Application
Drive	O
is	O
iCloud	B-Application
's	O
file	B-Application
hosting	I-Application
service	I-Application
,	O
that	O
syncs	O
files	B-Operating_System
across	O
devices	O
running	O
iOS	B-Operating_System
8	I-Operating_System
,	O
OS	B-Device
X	I-Device
Yosemite	I-Device
(	O
version	O
10.10	O
)	O
,	O
or	O
Windows	B-Device
7	I-Device
or	O
later	O
,	O
plus	O
online	O
web	B-Application
app	I-Application
access	O
via	O
iCloud.com	B-Application
.	O
</s>
<s>
Users	O
can	O
store	O
any	O
kind	O
of	O
file	O
(	O
including	O
photos	O
,	O
videos	O
,	O
documents	O
,	O
music	O
,	O
and	O
other	O
apps	O
 '	O
data	O
)	O
in	O
iCloud	B-Application
Drive	O
and	O
access	O
it	O
on	O
any	O
Mac	B-Device
,	O
iPad	B-Device
,	O
iPhone	B-Device
,	O
iPod	B-Device
Touch	I-Device
,	O
or	O
Windows	B-Application
PC	I-Application
,	O
with	O
any	O
single	O
file	O
being	O
a	O
maximum	O
of	O
50GB	O
in	O
file	O
size	O
(	O
earlier	O
it	O
was	O
15GB	O
)	O
.	O
</s>
<s>
By	O
default	O
,	O
users	O
still	O
get	O
5GB	O
of	O
storage	O
for	O
free	O
as	O
previously	O
,	O
but	O
the	O
expandable	O
storage	O
plans	O
available	O
have	O
increased	O
in	O
size	O
(	O
current	O
tiers	O
:	O
50GB	O
,	O
200GB	O
,	O
and	O
2TB	O
)	O
,	O
and	O
altered	O
to	O
monthly	O
subscription	O
payment	O
options	O
from	O
the	O
yearly	O
ones	O
offered	O
under	O
the	O
previous	O
MobileMe	B-Application
service	O
.	O
</s>
<s>
In	O
iOS	B-Operating_System
11	I-Operating_System
,	O
iCloud	B-Application
Drive	O
has	O
been	O
integrated	O
into	O
the	O
new	O
Files	B-Operating_System
app	O
that	O
gives	O
users	O
access	O
to	O
all	O
their	O
cloud	B-General_Concept
and	O
local	O
on-device	O
storage	O
,	O
which	O
replaced	O
the	O
standalone	O
iCloud	B-Application
Drive	O
app	O
.	O
</s>
<s>
According	O
to	O
computer	O
scientist	O
Malcolm	O
Hall	O
,	O
certain	O
file	O
types	O
are	O
automatically	O
excluded	O
from	O
iCloud	B-Application
Drive	O
and	O
will	O
not	O
be	O
uploaded	O
.	O
</s>
<s>
Users	O
can	O
also	O
manually	O
exclude	O
files	B-Operating_System
or	O
folders	O
by	O
appending	O
to	O
the	O
end	O
of	O
their	O
filenames	O
.	O
</s>
<s>
Messages	O
on	O
iCloud	B-Application
is	O
a	O
feature	O
on	O
iOS	B-Operating_System
11.4	I-Operating_System
and	O
macOS	B-Application
High	O
Sierra	O
10.13.5	O
which	O
keeps	O
all	O
of	O
a	O
user	O
's	O
iMessages	O
and	O
SMS	O
texts	O
stored	O
in	O
the	O
cloud	B-General_Concept
.	O
</s>
<s>
Private	O
Relay	O
,	O
an	O
iCloud+	O
feature	O
,	O
allows	O
users	O
to	O
browse	O
Safari	B-Application
privately	O
,	O
similar	O
to	O
a	O
virtual	B-Application
private	I-Application
network	I-Application
.	O
</s>
<s>
Hide	O
My	O
Email	O
is	O
available	O
to	O
iCloud+	O
users	O
and	O
allows	O
users	O
in	O
Mail	O
and	O
Safari	B-Application
to	O
generate	O
temporary	O
Apple	O
email	O
addresses	O
which	O
forward	O
messages	O
to	O
their	O
main	O
email	O
address	O
.	O
</s>
<s>
Custom	O
Email	O
Domain	O
,	O
an	O
iCloud+	O
feature	O
,	O
allows	O
users	O
to	O
personalize	O
their	O
email	O
address	O
with	O
a	O
custom	O
domain	O
name	O
and	O
invite	O
family	O
members	O
to	O
use	O
the	O
same	O
domain	O
with	O
their	O
iCloud	B-Application
Mail	O
accounts	O
.	O
</s>
<s>
In	O
2013	O
,	O
as	O
part	O
of	O
the	O
Snowden	O
revelations	O
,	O
The	O
Washington	O
Post	O
and	O
The	O
Guardian	O
reported	O
on	O
leaked	O
NSA	O
documents	O
which	O
showed	O
that	O
iCloud	B-Application
was	O
part	O
of	O
the	O
NSA	O
's	O
PRISM	O
surveillance	O
program	O
,	O
along	O
with	O
other	O
cloud	B-General_Concept
services	O
.	O
</s>
<s>
According	O
to	O
the	O
documents	O
,	O
the	O
NSA	O
could	O
access	O
emails	O
,	O
chats	O
,	O
photos	O
and	O
videos	O
,	O
and	O
stored	O
files	B-Operating_System
.	O
</s>
<s>
In	O
2014	O
,	O
some	O
celebrities	O
 '	O
nude	O
photos	O
were	O
leaked	O
;	O
these	O
photos	O
had	O
been	O
synced	O
to	O
iCloud	B-Application
by	O
the	O
celebrities	O
 '	O
iPhones	B-Device
.	O
</s>
<s>
Apple	O
denied	O
that	O
the	O
hack	O
was	O
caused	O
by	O
a	O
security	O
flaw	O
in	O
iCloud	B-Application
,	O
and	O
said	O
that	O
the	O
leaks	O
were	O
the	O
result	O
of	O
phishing	O
,	O
a	O
targeted	O
attack	O
in	O
which	O
the	O
celebrities	O
were	O
tricked	O
by	O
hackers	O
into	O
revealing	O
their	O
account	O
passwords	O
.	O
</s>
<s>
Some	O
iCloud	B-Application
data	O
is	O
end-to-end	O
encrypted	O
by	O
default	O
.	O
</s>
<s>
As	O
of	O
January	O
2022	O
,	O
these	O
include	O
:	O
Apple	O
Card	O
transactions	O
,	O
Health	O
data	O
,	O
Home	O
data	O
,	O
iCloud	B-Application
Keychain	O
,	O
Apple	O
Maps	O
favorites	O
,	O
collections	O
,	O
and	O
search	O
history	O
,	O
Memoji	O
,	O
Messages	O
in	O
iCloud	B-Application
,	O
vocabulary	O
learned	O
by	O
the	O
QuickType	O
keyboard	O
,	O
Safari	B-Application
history	O
,	O
tab	O
groups	O
,	O
and	O
iCloud	B-Application
tabs	O
,	O
Screen	O
Time	O
,	O
Siri	B-Application
information	O
,	O
Wi-Fi	O
passwords	O
,	O
and	O
W1	O
and	O
H1	O
Bluetooth	O
keys	O
.	O
</s>
<s>
However	O
,	O
if	O
iCloud	B-Application
Backup	O
is	O
enabled	O
,	O
the	O
encryption	O
key	O
for	O
Messages	O
in	O
iCloud	B-Application
is	O
part	O
of	O
the	O
backup	O
,	O
allowing	O
Apple	O
to	O
access	O
users	O
 '	O
entire	O
iMessage	O
history	O
if	O
served	O
with	O
a	O
search	O
warrant	O
.	O
</s>
<s>
On	O
December	O
7	O
,	O
2022	O
,	O
Apple	O
announced	O
Advanced	O
Data	O
Protection	O
for	O
iCloud	B-Application
,	O
an	O
option	O
to	O
enable	O
end-to-end	O
encryption	O
for	O
almost	O
all	O
iCloud	B-Application
data	O
including	O
Backups	O
,	O
Notes	O
,	O
Photos	O
,	O
and	O
more	O
.	O
</s>
<s>
The	O
only	O
data	O
classes	O
that	O
are	O
ineligible	O
for	O
Advanced	O
Data	O
Protection	O
are	O
Mail	O
,	O
Contacts	O
,	O
and	O
Calendars	B-Operating_System
,	O
in	O
order	O
to	O
preserve	O
the	O
ability	O
to	O
sync	O
third-party	O
clients	O
with	O
IMAP	B-Protocol
,	O
CardDAV	B-Protocol
or	O
CalDAV	B-Protocol
.	O
</s>
<s>
The	O
feature	O
became	O
available	O
to	O
U.S.	O
customers	O
on	O
December	O
13	O
with	O
the	O
release	O
of	O
iOS/iPadOS	O
16.2	O
and	O
macOS	B-Application
13.1	O
,	O
and	O
was	O
expanded	O
to	O
the	O
rest	O
of	O
the	O
world	O
on	O
January	O
23	O
,	O
2023	O
,	O
with	O
iOS/iPadOS	O
16.3	O
and	O
macOS	B-Application
13.2	O
.	O
</s>
<s>
Apple	O
prevents	O
users	O
from	O
enabling	O
Advanced	O
Data	O
Protection	O
from	O
a	O
device	O
that	O
was	O
recently	O
added	O
to	O
their	O
iCloud	B-Application
account	O
,	O
in	O
order	O
to	O
prevent	O
hackers	O
from	O
locking	O
users	O
out	O
of	O
their	O
files	B-Operating_System
by	O
enabling	O
encryption	O
.	O
</s>
<s>
Apple	O
has	O
been	O
scanning	O
iCloud	B-Application
Mail	O
for	O
child	O
abuse	O
material	O
starting	O
in	O
2019	O
.	O
</s>
<s>
On	O
August	O
5	O
,	O
2021	O
,	O
Apple	O
confirmed	O
it	O
has	O
planned	O
to	O
started	O
scanning	O
iCloud	B-Application
Photos	O
for	O
the	O
same	O
reason	O
.	O
</s>
<s>
After	O
receiving	O
a	O
public	O
backlash	O
against	O
Apple	O
scanning	O
private	O
photos	O
,	O
Apple	O
backed	O
down	O
from	O
its	O
plans	O
to	O
scan	O
iCloud	B-Application
Photos	O
,	O
and	O
canceled	O
them	O
altogether	O
in	O
December	O
2022	O
.	O
</s>
<s>
In	O
February	O
2018	O
,	O
Apple	O
announced	O
that	O
iCloud	B-Application
users	O
in	O
China	O
would	O
have	O
their	O
data	O
,	O
including	O
encryption	O
data	O
,	O
on	O
servers	O
called	O
"	O
云上贵州	O
"	O
located	O
in	O
the	O
country	O
to	O
comply	O
with	O
local	O
regulations	O
.	O
</s>
<s>
On	O
June	O
7	O
,	O
2021	O
,	O
during	O
the	O
WWDC	O
event	O
,	O
Apple	O
announced	O
that	O
iCloud	B-Application
's	O
new	O
'	O
private	O
relay	O
 '	O
feature	O
would	O
not	O
work	O
in	O
China	O
for	O
regulatory	O
reasons	O
.	O
</s>
