Using CAPTCHA to Decipher Old Text...
If you think that CAPTCHA, the squiggly lines you have to decipher in order to login or place your comments on many websites, are only there to keep out spammers, think again!There is actually another use of the annoying...
https://www.neatorama.com/2011/04/04/using-captcha-to-decipher-old-text/
