Tagged Questions
4
votes
4answers
419 views
Why Do we Need CAPTCHA? In what case we should use it?
In what case we should implement Captcha based security?. How accurate it is and if there exists any alternatives for Captcha based Security.
0
votes
1answer
167 views
Protect database resources from fake data inputs via web forms
Scenario:
I'm working on a project that needs to accept large amounts of data (customer data) from its users. So it can be normal to have a user trying to add 10,000 or 100,000 records at a time. In ...
4
votes
4answers
493 views
How does CAPTCHA mitigate DDoS attacks?
This seems like an easy question, but I've failed to find an answer.
One of the uses of CAPTCHA is to cope mitigate Denial of Service attacks. Suppose an adversary performs excessive login attempts, ...
1
vote
1answer
145 views
How reliable/secure is QCaptcha?
QCaptcha is an alternative way to protect a website from bots. It required a drag and drop action like this:
Question
How reliable is this implementation when compared to others mentioned on ...
3
votes
4answers
481 views
Can a CSRF CAPTCHA be defeated?
One defense that developers use to protect against a CSRF attack is to implement a CAPTCHA in critical steps. A CAPTCHA ensures that a human is at the keyboard approving the activity. But I've ...
