To my knowledge the company always had the right to monitor individuals who were using company equipment, particularly computers, as far as I remember, it was strictly forbidden to use SITA, later e-mail, for private use. For the latter there were good reasons, particularly during the Christmas season when " artists " created illustrated messages. The right to monitor was never put in question. It was not allowed to monitor external calls if the line was a telecom ( public ) line, it could only be tapped by court order and only by the police.