I got a phone call from someone pretend from Amazon and he want to confirm my credit card so he asked the expire date and security code when I refused he give me full name, address, last 4 digits of my credit card but Amzon confirm they never call a customer for these information !! how all these info are leaked ?
I use Kaspersky Internet security and also did scan with spyware doctor but did not found viruses or worms !!
I canceled my credit card and changed all my passwords but please advise what I should do to secure my data