Experts discuss the importance of protecting payment cards and keys from unauthorized scanning and theft, particularly in today's tech-savvy world. They suggest using materials like aluminum foil or specially designed cases to block RFID signals and prevent data breaches. The article emphasizes proactive measures consumers should take to safeguard their personal information against increasingly sophisticated hacking techniques. This guidance is particularly relevant given the growing number of electronic payment methods and smart keys, which are susceptible to interception if not properly protected.