<s>
Ross	O
Matthew	O
Greenberg	O
(	O
September	O
16	O
,	O
1956	O
–	O
February	O
16	O
,	O
2017	O
)	O
was	O
an	O
American	O
software	B-Application
developer	I-Application
,	O
noted	O
for	O
creating	O
one	O
of	O
the	O
first	O
antivirus	B-Application
software	I-Application
products	O
.	O
</s>
<s>
In	O
1987	O
,	O
as	O
Software	O
Concepts	O
Design	O
,	O
Greenberg	O
released	O
one	O
of	O
the	O
first	O
two	O
heuristic	B-Algorithm
antivirus	B-Application
software	I-Application
utilities	O
,	O
Flushot	B-Application
Plus	I-Application
.	O
</s>
<s>
He	O
released	O
it	O
as	O
shareware	B-License
for	O
$10	O
.	O
</s>
<s>
O'Reilly	O
book	O
author	O
Roger	O
A	O
.	O
Grimes	O
described	O
Flushot	B-Application
Plus	I-Application
as	O
"	O
the	O
first	O
holistic	O
program	O
to	O
fight	O
MMC	O
[	O
malicious	O
mobile	O
code ]	O
"	O
.	O
</s>
