The term “sousveillance” means the recording of an activity by a participant in the activity typically by way of small wearable or portable personal technologies. It has also been described as the inverse surveillance. In other words sousveillance is the watchful vigilance from underneath. The large scale availability of portable recording cameras of every kind and range has made the sousveillance very easy for almost everyone. Sousveillance has so many benefits, like someone can record an event and could be a strong witness of an incident by recording and saving the file in their device, the good example of the recent sousveillance is seen in African country of Ghana where its citizens has been credited with addressing many problems such as election fraud or electoral misdeeds, where mobile phones were used for checking malpractices and intimidation during elections. (WIKIPEDIA)
Sousveillance also has other implications like it can also be easily misused. Lets say if someone upload their picture on the Facebook and that particular person has hundreds of friends, and the picture that is posted by that person is liked by at least half of his friends then this means that the photo can be seen as a liked item by all the friends, further on his friends have, who are totally strangers to each other. So I think if someone posts his/her picture than they are making it a lot easier for some random stranger to access it and may be misuse it .
Wearable technology such as Google glass which is a wearable computer with an optical head mounted display (OHMD), will definitely increase the trend of sousveillance and will take it to the next level around the world. With the Google glass the people who do not feel comfortable with taking their phones or cameras out will only be wearing those glasses while doing sousveillance. It is criticized as well because many think and are afraid that the Google glass will cause the intrusion of privacy, and the etiquette and ethics of using the device in public and recording people without their permission. There is controversy that Google Glass would violate privacy rights due to security problems. (WIKI GOOGLE GLASS)