Netzer Shohet is a senior employee in one of Israel's largest cyber security firms and also the author of "The Cyber Safe Child". Netzer explains that the key principles of cyber safety are actually much older than the cyber revolution. How do you learn to trust or otherwise people whom you meet in different situations? Which information is it wise to reveal about yourself in initial meetings? If you do not want your children to speak to strangers, especially to adult strangers, then you, and they, must be aware of the fact that it is much easier for strangers to approach them online.