1
vote
1answer
124 views

Double opt-in confirmation link or confirmation code?

I read everything about double opt-in on this site and I saw on Sign up: Double opt-in still best practice? What about mobile? answers someone speaking about sending a confirmation code instead of a ...
38
votes
8answers
1k views

How do we stop users overpaying in financial web forms?

Submitting my online council tax payment last week, I made a mistake. Instead of specifying £63.00 in a freetext payment field (about $100USD), I missed the dot and am now poorer by £6,300 (about ten ...