Gossip

'To gossip means to talk needlessly about the faults and failings of others and even to invent such faults and failings where none exist.  To gossip means to watch closely the conduct of one's neighbour and to indulge in unwarranted criticism of his motives and in rash judgement as to the nature of his sins.
'Gossip is the most common of all sins of the tongue.  Although often called harmless, it is in fact rarely so because it hits at character...
'Gossip is drawing a wrong picture or drawing a picture you have no right to draw.  Careless gossip is no to be tossed off light.  God's command is "Thou shalt not bear false witness."...
'Gossip may also give the right picture and still be gossip because it is drawn for those who have no right to see it." - The Hidden Power of Kindness  by Lawrence G. Lovasik