A method for authorizing automatic login of a user to a reserved area of an information resource ( 105 WP) delivered by a web server, the method comprising: at a first user device, through a software application ( 115 WB) installed and running in the first user device, connecting to the web server for retrieving the information resource ( 105 WP), sending to the web server a provisional password identifying a login request to the reserved area of the information resource ( 105 WP), and sending to an authentication server an identifier of the information resource ( 105 WP), an identifier of the user and said provisional password; at the authentication server, based on said identifier of the information resource ( 105 WP) and on said identifier of the user, sending to a second user device an authorization request for authorizing the automatic login, the second user device being associated with the user and storing access credentials for logging in said reserved area of the information resource ( 105 WP); at the second user device, notifying to the user the authorization request, and upon confirmation of the authorization request by the user on the second user device, making available (255, 260, 265) to the web server the access credentials stored in the second user device and said provisional password, wherein said making available (255, 260, 265) to the web server the access credentials stored in the second user device comprises: at the second user device, sending the access credentials stored thereat to the authentication server, and at the authentication server, receiving the access credentials from the second user device and sending the received access credentials and said provisional password to the web server and at the web server, performing the automatic login to the restricted access area of the information resource based on the access credentials made available by the second user device and on said provisional password received from the authentication server. at a first user device, through a software application ( 115 WB) installed and running in the first user device, connecting to the web server for retrieving the information resource ( 105 WP), sending to the web server a provisional password identifying a login request to the reserved area of the information resource ( 105 WP), and sending to an authentication server an identifier of the information resource ( 105 WP), an identifier of the user and said provisional password; at the authentication server, based on said identifier of the information resource ( 105 WP) and on said identifier of the user, sending to a second user device an authorization request for authorizing the automatic login, the second user device being associated with the user and storing access credentials for logging in said reserved area of the information resource ( 105 WP); at the second user device, notifying to the user the authorization request, and upon confirmation of the authorization request by the user on the second user device, making available (255, 260, 265) to the web server the access credentials stored in the second user device and said provisional password, wherein said making available (255, 260, 265) to the web server the access credentials stored in the second user device comprises: at the second user device, sending the access credentials stored thereat to the authentication server, and at the authentication server, receiving the access credentials from the second user device and sending the received access credentials and said provisional password to the web server and at the second user device, sending the access credentials stored thereat to the authentication server, and at the authentication server, receiving the access credentials from the second user device and sending the received access credentials and said provisional password to the web server and