The topic that I would like to write my Vignette about is in this datafied world is whether data of people’s location history on the map apps be hacked and be used illegally. In my everyday life, I use Google Maps while I am driving, so I must turn on the GPS system on my cell phone. Therefore, these map apps must have my permission to know where my location is, and they should know the time that I am not at my home and the locations that I usually go to. My concern is the negative impact of the data on this app be leaked. The first thing that comes to my mind is the people who have my tracking data should know when no one is at my home, so they could break into my home, and take my belongings. So, the first ethical issue is that data science practitioners should guarantee that they never use the data of their app users for illegal purposes. The second ethical issue is to keep the data of their app users safe and protect them away from leaking. The reason that I am interested in this topic is people use map apps a lot in their life, but not many of them notice that the ethical issues behind these apps. Most people do not tend to doubt the honesty of these big tech companies and give them the permissions easily. Therefore, I would like to choose the template is to write an internal memo to be circulated among employees of these companies that launch map apps regarding how to protect users’ privacy of their data. My potential audiences might be heavy users of map apps, drivers, and data science practitioners because they represent two important roles of this ethical problem that possibly occurs in our society.