<s>
L0phtCrack	B-Application
is	O
a	O
password	O
auditing	O
and	O
recovery	O
application	O
originally	O
produced	O
by	O
Mudge	O
from	O
L0pht	O
Heavy	O
Industries	O
.	O
</s>
<s>
It	O
is	O
used	O
to	O
test	O
password	O
strength	O
and	O
sometimes	O
to	O
recover	O
lost	O
Microsoft	B-Application
Windows	I-Application
passwords	O
,	O
by	O
using	O
dictionary	O
,	O
brute-force	O
,	O
hybrid	O
attacks	O
,	O
and	O
rainbow	B-Algorithm
tables	I-Algorithm
.	O
</s>
<s>
In	O
January	O
2009	O
,	O
L0phtCrack	B-Application
was	O
acquired	O
by	O
the	O
original	O
authors	O
Zatko	O
,	O
Wysopal	O
,	O
and	O
Rioux	O
from	O
Symantec	O
.	O
</s>
<s>
L0phtCrack	B-Application
6	O
was	O
announced	O
on	O
11	O
March	O
2009	O
at	O
the	O
SOURCE	O
Boston	O
Conference	O
.	O
</s>
<s>
L0phtCrack	B-Application
6	O
contains	O
support	O
for	O
64-bit	O
Windows	O
platforms	O
as	O
well	O
as	O
upgraded	O
rainbow	B-Algorithm
tables	I-Algorithm
support	O
.	O
</s>
<s>
L0phtCrack	B-Application
7	O
was	O
released	O
on	O
30	O
August	O
2016	O
,	O
seven	O
years	O
after	O
the	O
previous	O
release	O
.	O
</s>
<s>
L0phtCrack	B-Application
7	O
supports	O
GPU	O
cracking	O
,	O
increasing	O
performance	O
up	O
to	O
500	O
times	O
that	O
of	O
previous	O
versions	O
.	O
</s>
<s>
On	O
April	O
21	O
,	O
2020	O
,	O
Terahash	O
announced	O
it	O
had	O
acquired	O
L0phtCrack	B-Application
.	O
</s>
<s>
On	O
July	O
1	O
,	O
2021	O
L0pht	O
Holdings	O
,	O
LLC	O
repossessed	O
L0phtCrack	B-Application
after	O
Terahash	O
defaulted	O
on	O
its	O
instalment	O
sale	O
loan	O
.	O
</s>
<s>
The	O
current	O
owners	O
announced	O
that	O
they	O
were	O
exploring	O
open	B-License
source	I-License
options	O
for	O
L0phtcrack	B-Application
.	O
</s>
<s>
On	O
October	O
17	O
,	O
2021	O
L0phtCrack	B-Application
version	O
7.2.0	O
was	O
released	O
open-source	B-License
,	O
with	O
different	O
portions	O
of	O
the	O
software	O
being	O
published	O
under	O
different	O
licenses	O
.	O
</s>
