Password has been one of the single entity that is most important in protecting an account, especially a web app or online service user account which can be accessed by anybody with Internet connection. As such, most online accounts are easily hacked by hackers or people with malicious intents, especially when an easy-to-guess, dictionary-based or common password.

Thanks to Twitter, which embeds a list of banned password on its sign up page at https://twitter.com/signup, buried inside the HTML source code. The list reveals passwords which are weak, and probably been on the top of hacker list of passwords to try when attempting to hack or break into someone else accounts. How Twitter prepares the list of bad passwords is unknown, but as one of the most popular website in the world, it can easily detect attacks or hacking attempts on the accounts, and gather the statistics on passwords commonly used to hack.

The bad passwords are mainly repetitive, common words, name or dictionary words. These banned passwords are not accepted by Twitter when signing up for Twitter account, and should also not be used with any other accounts in order to properly protect the account. Rather, a random password should be used.

  • 111111
  • 11111111
  • 112233
  • 121212
  • 123123
  • 123456
  • 1234567
  • 12345678
  • 131313
  • 232323
  • 654321
  • 666666
  • 696969
  • 777777
  • 7777777
  • 8675309
  • 987654
  • aaaaaa
  • abc123
  • abc123
  • abcdef
  • abgrtyu
  • access
  • access14
  • action
  • albert
  • alexis
  • amanda
  • amateur
  • andrea
  • andrew
  • angela
  • angels
  • animal
  • anthony
  • apollo
  • apples
  • arsenal
  • arthur
  • asdfgh
  • asdfgh
  • ashley
  • asshole
  • august
  • austin
  • badboy
  • bailey
  • banana
  • barney
  • baseball
  • batman
  • beaver
  • beavis
  • bigcock
  • bigdaddy
  • bigdick
  • bigdog
  • bigtits
  • birdie
  • bitches
  • biteme
  • blazer
  • blonde
  • blondes
  • blowjob
  • blowme
  • bond007
  • bonnie
  • booboo
  • booger
  • boomer
  • boston
  • brandon
  • brandy
  • braves
  • brazil
  • bronco
  • broncos
  • bulldog
  • buster
  • butter
  • butthead
  • calvin
  • camaro
  • cameron
  • canada
  • captain
  • carlos
  • carter
  • casper
  • charles
  • charlie
  • cheese
  • chelsea
  • chester
  • chicago
  • chicken
  • cocacola
  • coffee
  • college
  • compaq
  • computer
  • cookie
  • cooper
  • corvette
  • cowboy
  • cowboys
  • crystal
  • cumming
  • cumshot
  • dakota
  • dallas
  • daniel
  • danielle
  • debbie
  • dennis
  • diablo
  • diamond
  • doctor
  • doggie
  • dolphin
  • dolphins
  • donald
  • dragon
  • dreams
  • driver
  • eagle1
  • eagles
  • edward
  • einstein
  • erotic
  • extreme
  • falcon
  • fender
  • ferrari
  • firebird
  • fishing
  • florida
  • flower
  • flyers
  • football
  • forever
  • freddy
  • freedom
  • fucked
  • fucker
  • fucking
  • fuckme
  • fuckyou
  • gandalf
  • gateway
  • gators
  • gemini
  • george
  • giants
  • ginger
  • golden
  • golfer
  • gordon
  • gregory
  • guitar
  • gunner
  • hammer
  • hannah
  • hardcore
  • harley
  • heather
  • helpme
  • hentai
  • hockey
  • hooters
  • horney
  • hotdog
  • hunter
  • hunting
  • iceman
  • iloveyou
  • internet
  • iwantu
  • jackie
  • jackson
  • jaguar
  • jasmine
  • jasper
  • jennifer
  • jeremy
  • jessica
  • johnny
  • johnson
  • jordan
  • joseph
  • joshua
  • junior
  • justin
  • killer
  • knight
  • ladies
  • lakers
  • lauren
  • leather
  • legend
  • letmein
  • letmein
  • little
  • london
  • lovers
  • maddog
  • madison
  • maggie
  • magnum
  • marine
  • marlboro
  • martin
  • marvin
  • master
  • matrix
  • matthew
  • maverick
  • maxwell
  • melissa
  • member
  • mercedes
  • merlin
  • michael
  • michelle
  • mickey
  • midnight
  • miller
  • mistress
  • monica
  • monkey
  • monkey
  • monster
  • morgan
  • mother
  • mountain
  • muffin
  • murphy
  • mustang
  • naked
  • nascar
  • nathan
  • naughty
  • ncc1701
  • newyork
  • nicholas
  • nicole
  • nipple
  • nipples
  • oliver
  • orange
  • packers
  • panther
  • panties
  • parker
  • password
  • password
  • password1
  • password12
  • password123
  • patrick
  • peaches
  • peanut
  • pepper
  • phantom
  • phoenix
  • player
  • please
  • pookie
  • porsche
  • prince
  • princess
  • private
  • purple
  • pussies
  • qazwsx
  • qwerty
  • qwertyui
  • rabbit
  • rachel
  • racing
  • raiders
  • rainbow
  • ranger
  • rangers
  • rebecca
  • redskins
  • redsox
  • redwings
  • richard
  • robert
  • rocket
  • rosebud
  • runner
  • rush2112
  • russia
  • samantha
  • sammy
  • samson
  • sandra
  • saturn
  • scooby
  • scooter
  • scorpio
  • scorpion
  • secret
  • sexsex
  • shadow
  • shannon
  • shaved
  • sierra
  • silver
  • skippy
  • slayer
  • smokey
  • snoopy
  • soccer
  • sophie
  • spanky
  • sparky
  • spider
  • squirt
  • srinivas
  • startrek
  • starwars
  • steelers
  • steven
  • sticky
  • stupid
  • success
  • suckit
  • summer
  • sunshine
  • superman
  • surfer
  • swimming
  • sydney
  • taylor
  • tennis
  • teresa
  • tester
  • testing
  • theman
  • thomas
  • thunder
  • thx1138
  • tiffany
  • tigers
  • tigger
  • tomcat
  • topgun
  • toyota
  • travis
  • trouble
  • trustno1
  • tucker
  • turtle
  • twitter
  • united
  • vagina
  • victor
  • victoria
  • viking
  • voodoo
  • voyager
  • walter
  • warrior
  • welcome
  • whatever
  • william
  • willie
  • wilson
  • winner
  • winston
  • winter
  • wizard
  • xavier
  • xxxxxx
  • xxxxxxxx
  • yamaha
  • yankee
  • yankees
  • yellow
  • zxcvbn
  • zxcvbnm
  • zzzzzz