A method for verifying a communication session, comprising: receiving, at a second network device, an indication that a first network device has established a first communication session with a user-side device, wherein said user-side device is connected to said first network device via a card reader through RF communication; and verifying, by said second network device, said first communication session by establishing a second communication session (101, 201) via session initiation protocol or voice over internet protocol (VoIP) communication with said user-side device before said user-side device directs a password of a user to said first network device in said first communication session, wherein said second communication session comprises the following steps, performed by the second network device: retrieving, from a database, private identification information of the user that comprises RFID tag information that includes a mobile device ID; and directing (102, 202), to said user-side device, said private identification information for comparison to locally stored private identification information prior to said user-side device directing said password to said first network device in said first communication session on the condition that said directed private identification information matches said locally stored private identification information. receiving, at a second network device, an indication that a first network device has established a first communication session with a user-side device, wherein said user-side device is connected to said first network device via a card reader through RF communication; and verifying, by said second network device, said first communication session by establishing a second communication session (101, 201) via session initiation protocol or voice over internet protocol (VoIP) communication with said user-side device before said user-side device directs a password of a user to said first network device in said first communication session, wherein said second communication session comprises the following steps, performed by the second network device: retrieving, from a database, private identification information of the user that comprises RFID tag information that includes a mobile device ID; and directing (102, 202), to said user-side device, said private identification information for comparison to locally stored private identification information prior to said user-side device directing said password to said first network device in said first communication session on the condition that said directed private identification information matches said locally stored private identification information. retrieving, from a database, private identification information of the user that comprises RFID tag information that includes a mobile device ID; and directing (102, 202), to said user-side device, said private identification information for comparison to locally stored private identification information prior to said user-side device directing said password to said first network device in said first communication session on the condition that said directed private identification information matches said locally stored private identification information.