Secure method for dispensing a fluid to a user provided with a means of authentication, by means of a secure device including a container suitable for containing said fluid, said container including: - A valve through which the fluid can be dispensed to the user, said valve having a first state wherein it is closed and a second state wherein it is open, - A means of locking said valve, said means of locking being movable between a first position wherein it blocks said valve in said first state and a second position wherein said valve is freely movable between said first state and said second state, - Means suitable for changing said valve to a predefined intermediate state between said first state wherein it is closed and said second state wherein it is fully open; - A means of detection suitable for detecting the presence of said means of authentication of the user, - Means for controlling that can be activated by a control signal, said means for controlling being suitable for switching said means of locking from said first position to said second position, - An interface suitable for establishing a communication channel between said means of authentication of the user and said secure device, said communication channel being suitable for transferring a piece of authentication information, with the reception of said authentication information by the interface generating the control signal when the authentication information is equal to a predetermined value, said secure method for dispensing further comprising: - A step of receiving authentication information by said interface, - A step of generating a control signal when the authentication information is equal to a predetermined value, - A step of activating said means for controlling, when the control signal is generated, for the switching of said means for unlocking from said first position to said second position, - A step of passing said valve from the first state to the second state for the dispensing of fluid, characterised in that the method includes - a step of detecting the presence of a user by said means of detection, and in that - said communication channel is established when the presence of said means of authentication is detected by said means of detection. - A valve through which the fluid can be dispensed to the user, said valve having a first state wherein it is closed and a second state wherein it is open, - A means of locking said valve, said means of locking being movable between a first position wherein it blocks said valve in said first state and a second position wherein said valve is freely movable between said first state and said second state, - Means suitable for changing said valve to a predefined intermediate state between said first state wherein it is closed and said second state wherein it is fully open; - A means of detection suitable for detecting the presence of said means of authentication of the user, - Means for controlling that can be activated by a control signal, said means for controlling being suitable for switching said means of locking from said first position to said second position, - An interface suitable for establishing a communication channel between said means of authentication of the user and said secure device, said communication channel being suitable for transferring a piece of authentication information, with the reception of said authentication information by the interface generating the control signal when the authentication information is equal to a predetermined value, said secure method for dispensing further comprising: - A step of receiving authentication information by said interface, - A step of generating a control signal when the authentication information is equal to a predetermined value, - A step of activating said means for controlling, when the control signal is generated, for the switching of said means for unlocking from said first position to said second position, - A step of passing said valve from the first state to the second state for the dispensing of fluid, characterised in that the method includes - a step of detecting the presence of a user by said means of detection, and in that - said communication channel is established when the presence of said means of authentication is detected by said means of detection. - A step of receiving authentication information by said interface, - A step of generating a control signal when the authentication information is equal to a predetermined value, - A step of activating said means for controlling, when the control signal is generated, for the switching of said means for unlocking from said first position to said second position, - A step of passing said valve from the first state to the second state for the dispensing of fluid, characterised in that the method includes - a step of detecting the presence of a user by said means of detection, and in that - said communication channel is established when the presence of said means of authentication is detected by said means of detection.