Protecting web forms without reCAPTCHA
If you keep any kind of public web forms online, you have to deal with a constant influx of spam. Many developers opt for the most obvious…
A comparison of voting schemes' security properties
Voting is a uniquely difficult problem with seemingly contradictory requirements. On one hand, in order to prevent coercion and vote-buying…
PayPal sends phishing emails to its customers
I rarely use PayPal for anything, so imagine my shock when PayPal sent me an email asking me to “review my recent transactions now”. Oh my…
