Methods and apparatus to limit access to a secure personal network are provided. The method includes receiving an Internet protocol (IP) packet of a device including a confirmation value associated with the SPN. The method compares the confirmation value to a predetermined confirmation value and allows access to the SPN when the confirmation value matches the predetermined confirmation value. The IP packet is dropped otherwise. The confirmation value and the predetermined confirmation value are generated by an algorithm including a pseudorandom number generator, a hash function and a one-time password.