![](http://www.alamy.com/thumbs/6/D1AB92D2-DAA6-4246-9541-5A35EA913500/ED50R8.jpg)
Captcha words for human security login
Size: 4000px × 3000px
Photo credit: © Maen Zayyad / Alamy / Afripics
License: Royalty Free
Model Released: No
Keywords: access, area, attempts, bot, button, capabilities, captcha, characters, code, computer, digital, generate, human, image, letters, password, picture, prevention, protection, random, screen, security, site, spam, submit, symbols, system, username