On many services, there is the request to connect to your Gmail (or other webmail service) account in order to retrieve your contacts information (so to add them to your network in the new service).This is obviously not secure.So in such a case, what should you do?(I made a second Gmail account, copied my contacts there, and used that - but that is not optimal.)
What to do when a service asks for your Gmail password?
gmail;security;contacts;passwords
No is the correct answer--you should never give away your password. Gmail now supports OAuth, an industry standard protocol, enabling you to give your consent for specific access to your mail without sharing your password.