I'm trying to arrange a holiday out to the Aran Islands, and the guesthouse emailed me back confirming that they do have a room available.
But here is the catch: they want me to email my credit card number, expiry date and the CVV to confirm my booking, which makes me a little uneasy. According to this answer, this is quite common.
Unlike the hotel mentioned in that question, the guesthouse is not a large chain that should know better (or be able to hire somebody who does know better).
Given that my card is chip-and-pin, should I be (particularly) worried? If so, what should I do next?