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Please don't use these passwords. Sincerely, the internet

You may have protected your personal data with strong passwords, but when hackers seize control of other computers, the resulting "botnets" can cause plenty of collateral damage. The depressing part is that one of the biggest holes is the easiest to fix: terrible passwords. SplashData has just released its annual list of the worst ones (gleaned from hacked file dumps), and things haven't changed much over last year. The most common stolen password is still "123456," which edged out perennial groaner "password." Other top picks in the alphanumeric hall of shame are "12345678," "qwerty," "monkey" and new this year, "batman." According to security expert Mark Burnett, the top 25 (below) represent an eye-popping 2.2 percent of all passwords exposed.

The good news is that fewer people are using bad passwords than in 2013, perhaps thanks to some well-publicized data breaches at Sony, Target and elsewhere. SplashData reminds folks to create passwords with at least eight mixed characters -- preferably more -- not based on easy-to-brute-force dictionary words. As pointed out by Buffer Open, other methods include pass phrases, mnemonic devices and other memory tricks -- including a gem from XKCD. You shouldn't use the same password on more than one site, so if you have a lot, it's a good idea to use one of the many password managers out there, like LastPass or SplashID. Those let you access your entire collection of passwords with just a single passphrase -- one that had better be a lot stronger than "123456."

Rank

Password

Change from 2013

1

123456

Unchanged

2

password

Unchanged

3

12345

Up 17

4

12345678

Down 1

5

qwerty

Down 1

6

123456789

Unchanged

7

1234

Up 9

8

baseball

New

9

dragon

New

10

football

New

11

1234567

Down 4

12

monkey

Up 5

13

letmein

Up 1

14

abc123

Down 9

15

111111

Down 8

16

mustang

New

17

access

New

18

shadow

Unchanged

19

master

New

20

michael

New

21

superman

New

22

696969

New

23

123123

Down 12

24

batman

New

25

trustno1

Down 1

[Image credit: Alex E. Proimos/Flickr]