- magnetic stripe
- embossed numbers etc
- signature strip
- CSC/CCV number
The vendor never really look at your card in these circumstances.
Obviously this will cause some difficulty in physical shops in non-chip & pin countries, but I could probably use a disposable pre-paid card or one-time numbers when travelling in those countries.
Apart from legal issues (the bank owns the card and I am proposing to mutilate their property) Is there any reason I shouldn't mechanically remove the stripe, embossing, signature and CSC to improve security?