4 ms·
Problems: - Easier to defeat than OCR. - Only 9 combinations, so random guessing works fine too. - Visually impaired fail.
by ggrot 17y ago
Problems:
- Easier to defeat than OCR.
- Only 9 combinations, so random guessing works fine too.
- Visually impaired fail.
- pavel_lishin 17y ago- Utterly dependent on a mouse. This is annoying.
- joshfinnie 17y agoreliance on javascript
- tomjen2 17y agoI don't think that is a failure though - that alone removes a lot of bots.