Top 500 worst Passwords of all time

These are the top 500 worst passwords you could possibly use. The following list is from Mark Burnett's 2005 book Perfect Passwords: Selection, Protection, Authentication, where he has compiled the most commonly used passwords by people all over the internet. Though the compiled list is now old, considering that it's the year 2010 now, a full five years on, this list still has got a lot of importance. Though the trend might have shifted a little, with internet users becoming more aware of all these security issues, but even today most people still use some of these passwords.

Crackers use these commonly used lists of passwords to break into accounts of their targets using a technique called Brute forcing. This technique essentially involves trying out different password combinations for an account as if you were 'guessing' and trying to break in. That's where the term 'brute force' comes in. The only difference being that nothing is being done manually, instead, brute forcing tools are used to do this work. List of these guessable passwords, called as the 'hacker dictionary file', is used in brute forcing tools thus essentially automating the guessing process. This technique of brute forcing using a dictionary file is also known as Dictionary Attack. A hacker dictionary file can also be a collection of words from the standard dictionary. Well known examples of dictionary attack software tools include:

• Crack by Alec Muffett
• John the Ripper
• L0phtCrack
• Cain
• Brutus
• THC Hydra

As said above, such techniques make use of these dictionary files that contains list of all the common words that people use as passwords and hence staying away from these or their derivatives is very important. Below is a small excerpt and the list of 500 worst possible passwords that one could possibly have, compiled by Mark Burnett.

From the moment people started using passwords, it didn't take long to realize how many people picked the very same passwords over and over. Even the way people misspell words is consistent. In fact, people are so predictable that most hackers make use of lists of common passwords just like these. To give you some insight into how predictable humans are, the following is a list of the 500 most common passwords. If you see your password on this list, please change it immediately. Keep in mind that every password listed here has been used by at least hundreds if not thousands of other people.
There are some interesting passwords on this list that show how people try to be clever, but even human cleverness is predictable. For example, look at these passwords that I found interesting:
ncc1701 The ship number for the Starship Enterprise
thx1138 The name of George Lucas's first movie, a 1971 remake of an earlier student project
qazwsx Follows a simple pattern when typed on a typical keyboard
666666 Six sixes
7777777 Seven sevens
ou812 The title of a 1988 Van Halen album
8675309 The number mentioned in the 1982 Tommy Tutone song. The song supposedly caused an epidemic of people dialing 867- 5309 and asking for "Jenny"
"...Approximately one out of every nine people uses at least one password on the list shown in Table 9.1! And one out of every 50 people uses one of the top 20 worst passwords.."
Lists the top 500 worst passwords of all time, not considering character case. Don’t blame me for the offensive words; you were the ones who picked these, not me.

NO	Top 1-100	Top 101–200	Top 201–300	Top 301–400	Top 401–500
1	123456	porsche	firebird	prince	rosebud
2	password	guitar	butter	beach	jaguar
3	12345678	chelsea	united	amateur	great
4	1234	black	turtle	7777777	cool
5	pussy	diamond	steelers	muffin	cooper
6	12345	nascar	tiffany	redsox	1313
7	dragon	jackson	zxcvbn	star	scorpio
8	qwerty	cameron	tomcat	testing	mountain
9	696969	654321	golf	shannon	madison
10	mustang	computer	bond007	murphy	987654
11	letmein	amanda	bear	frank	brazil
12	baseball	wizard	tiger	hannah	lauren
13	master	xxxxxxxx	doctor	dave	japan
14	michael	money	gateway	eagle1	naked
15	football	phoenix	gators	11111	squirt
16	shadow	mickey	angel	mother	stars
17	monkey	bailey	junior	nathan	apple
18	abc123	knight	thx1138	raiders	alexis
19	pass	iceman	porno	steve	aaaa
20	fuckme	tigers	badboy	forever	bonnie
21	6969	purple	debbie	angela	peaches
22	jordan	andrea	spider	viper	jasmine
23	harley	horny	melissa	ou812	kevin
24	ranger	dakota	booger	jake	matt
25	iwantu	aaaaaa	1212	lovers	qwertyui
26	jennifer	player	flyers	suckit	danielle
27	hunter	sunshine	fish	gregory	beaver
28	fuck	morgan	porn	buddy	4321
29	2000	starwars	matrix	whatever	4128
30	test	boomer	teens	young	runner
31	batman	cowboys	scooby	nicholas	swimming
32	trustno1	edward	jason	lucky	dolphin
33	thomas	charles	walter	helpme	gordon
34	tigger	girls	cumshot	jackie	casper
35	robert	booboo	boston	monica	stupid
36	access	coffee	braves	midnight	shit
37	love	xxxxxx	yankee	college	saturn
38	buster	bulldog	lover	baby	gemini
39	1234567	ncc1701	barney	cunt	apples
40	soccer	rabbit	victor	brian	august
41	hockey	peanut	tucker	mark	3333
42	killer	john	princess	startrek	canada
43	george	johnny	mercedes	sierra	blazer
44	sexy	gandalf	5150	leather	cumming
45	andrew	spanky	doggie	232323	hunting
46	charlie	winter	zzzzzz	4444	kitty
47	superman	brandy	gunner	beavis	rainbow
48	asshole	compaq	horney	bigcock	112233
49	fuckyou	carlos	bubba	happy	arthur
50	dallas	tennis	2112	sophie	cream
51	jessica	james	fred	ladies	calvin
52	panties	mike	johnson	naughty	shaved
53	pepper	brandon	xxxxx	giants	surfer
54	1111	fender	tits	booty	samson
55	austin	anthony	member	blonde	kelly
56	william	blowme	boobs	fucked	paul
57	daniel	ferrari	donald	golden	mine
58	golfer	cookie	bigdaddy	0	king
59	summer	chicken	bronco	fire	racing
60	heather	maverick	penis	sandra	5555
61	hammer	chicago	voyager	pookie	eagle
62	yankees	joseph	rangers	packers	hentai
63	joshua	diablo	birdie	einstein	newyork
64	maggie	sexsex	trouble	dolphins	little
65	biteme	hardcore	white	0	redwings
66	enter	666666	topgun	chevy	smith
67	ashley	willie	bigtits	winston	sticky
68	thunder	welcome	bitches	warrior	cocacola
69	cowboy	chris	green	sammy	animal
70	silver	panther	super	slut	broncos
71	richard	yamaha	qazwsx	8675309	private
72	fucker	justin	magic	zxcvbnm	skippy
73	orange	banana	lakers	nipples	marvin
74	merlin	driver	rachel	power	blondes
75	michelle	marine	slayer	victoria	enjoy
76	corvette	angels	scott	asdfgh	girl
77	bigdog	fishing	2222	vagina	apollo
78	cheese	david	asdf	toyota	parker
79	matthew	maddog	video	travis	qwert
80	121212	hooters	london	hotdog	time
81	patrick	wilson	7777	paris	sydney
82	martin	butthead	marlboro	rock	women
83	freedom	dennis	srinivas	xxxx	voodoo
84	ginger	fucking	internet	extreme	magnum
85	blowjob	captain	action	redskins	juice
86	nicole	bigdick	carter	erotic	abgrtyu
87	sparky	chester	jasper	dirty	777777
88	yellow	smokey	monster	ford	dreams
89	camaro	xavier	teresa	freddy	maxwell
90	secret	steven	jeremy	arsenal	music
91	dick	viking	11111111	access14	rush2112
92	falcon	snoopy	bill	wolf	russia
93	taylor	blue	crystal	nipple	scorpion
94	111111	eagles	peter	iloveyou	rebecca
95	131313	winner	pussies	alex	tester
96	123123	samantha	cock	florida	mistress
97	bitch	house	beer	eric	phantom
98	hello	miller	rocket	legend	billy
99	scooter	flower	theman	movie	6666
100	please	jack	oliver	success	albert

The two entries for zeroes is a spreadsheet formatting error. That is a spreadsheet like MS Excel won't recognize between 0000 and 0000000 when entered inside the cell under default formatting. It will automatically consider them as 0 (that's natural mathematics!).

Brute forcing tools and techniques are also used for checking the strength of user password as a security measure. While we may never know whether these password lists are being used by crackers and hackers or if they are being used by security professionals, it's always recommended that we use a password that is difficult to guess by using different combination of uppercase and lowercase letters and numbers and also making sure that these are changed periodically without repeating them. Because hackers won't be using these 500 word list, they have thousands of them. Better be safe than sorry :)

You may download a free brute force tools called John the Ripper from here.
Dictionary files can be found below
Oxford University Wordlist (ftp)
The Argon wordlist