<s>
The	O
SCA	B-Device
virus	I-Device
is	O
the	O
first	O
computer	O
virus	O
created	O
for	O
the	O
Amiga	B-Device
and	O
one	O
of	O
the	O
first	O
to	O
gain	O
public	O
notoriety	O
.	O
</s>
<s>
The	O
SCA	B-Device
virus	I-Device
is	O
a	O
boot	O
sector	O
virus	O
.	O
</s>
<s>
Something	O
wonderful	O
has	O
happened	O
Your	O
AMIGA	B-Device
is	O
alive	O
!	O
</s>
<s>
Another	O
masterpiece	O
of	O
The	O
Mega-Mighty	O
SCA	B-Device
!	O
</s>
<s>
"	O
SCA	B-Device
"	O
is	O
an	O
acronym	O
for	O
the	O
Swiss	B-Device
Cracking	I-Device
Association	I-Device
,	O
a	O
group	O
engaged	O
in	O
software	O
protection	O
removal	O
,	O
so	O
the	O
geographic	O
origin	O
of	O
the	O
virus	O
was	O
Switzerland	O
.	O
</s>
<s>
The	O
virus	O
is	O
probably	O
authored	O
by	O
an	O
SCA	B-Device
member	O
known	O
as	O
"	O
CHRIS	O
"	O
.	O
</s>
<s>
SCA	B-Device
will	O
not	O
harm	O
disks	O
per	O
se	O
,	O
but	O
spreads	O
to	O
any	O
write-enabled	O
floppies	O
inserted	O
.	O
</s>
<s>
SCA	B-Device
also	O
checksums	O
as	O
an	O
original	O
filesystem	O
(	O
OFS	O
)	O
bootblock	O
,	O
hence	O
destroying	O
newer	O
filesystems	O
if	O
the	O
user	O
does	O
n't	O
know	O
the	O
proper	O
use	O
of	O
the	O
"	O
install	O
"	O
command	O
to	O
remove	O
SCA	B-Device
(	O
"	O
install	O
df0	O
:	O
FFS	O
FORCE	O
"	O
to	O
recover	O
a	O
'	O
fast	O
filesystem	O
 '	O
floppy	O
)	O
.	O
</s>
<s>
The	O
"	O
Mega-Mighty	O
SCA	B-Device
"	O
produced	O
the	O
first	O
Amiga	B-Device
virus	O
checker	O
which	O
killed	O
the	O
SCA	B-Device
virus	I-Device
.	O
</s>
<s>
This	O
may	O
well	O
have	O
been	O
in	O
response	O
to	O
estimates	O
that	O
approximately	O
40%	O
of	O
all	O
Amiga	B-Device
users	O
had	O
SCA	B-Device
in	O
their	O
disk	O
collection	O
somewhere	O
,	O
due	O
to	O
rampant	O
piracy	O
.	O
</s>
<s>
Other	O
authors	O
inspired	O
by	O
the	O
harmless	O
SCA	B-Device
virus	I-Device
would	O
later	O
produce	O
more	O
destructive	O
viruses	O
known	O
as	O
the	O
Byte	B-Device
Bandit	I-Device
and	O
the	O
Byte	O
Warrior	O
.	O
</s>
