Microsoft: Changing Passwords Isn't Worth the Effort

Nobody will argue that "123456" is a good choice for a password. But is forcing the user to change it worth the effort? If you use a common word or phrase to password-protect a sensitive account, hackers can break in using a dictionary attack that simply tries thousands of common passwords. Hacking skills aren't even required if your password is one of the ten most common; any Joe can crack that a

[causeless]

"@sakichan TKD無限ループの「パスワード定期変更！」関連にこのへん既出だったっけ？（ちゃんと追ってない） https://t.co/KIgw5AtNtb http://t.co/0BQcSh76…" via https://twitter.com/sakichan/status/531835952507789312

[ockeghem]

『A hacker who steals your password is going to use it right away; he won't wait two months』

[mickn]

マイクロソフト: パスワードの変更は努力する価値なし