Articles tagged: CAPTCHA
A dictionary attack is a common brute-force way of achieving a hacker’s goal. The goal of a dictionary attack could range from compromising your system to sending spam.
Spam, spammers, and hackers. They make website management quite difficult, and you may be experiencing this with your web form.
Most of these major email providers are doing what I would call behavioral analysis. They’re looking for signals that indicate spam and then posting a CAPTCHA.