A company has emailed my contact details including name and age of my child, our home address and email details, and also the dates of our next holiday to an unspecified number of other people who entered a competition. They have emailed me all the details of 12 other people. I contacted them to point this breach out and they have basically downplayed it, saying they can't confirm how many people now have all my details and that they are very sorry. I am now really worried in case I will be burgled while on holiday and also worried about identity theft and the like. AIBU or would other people be appalled at this? I don't really know what to do now but I feel like I should do something!