Privacy in a chat room is rarely lost in one big mistake. It leaks out in small, harmless-looking details that add up. Knowing which details matter lets you talk freely about everything else.
How people are identified from small details
You may never write your name, yet say over a few evenings that you are a dentist, that you moved to Graz three years ago, and that your daughter just started school. For someone who wants to find you, that is already a short list. This is sometimes called the mosaic effect: each piece is meaningless, the picture is not.
The answer is not silence. It is to keep one or two pieces out of the picture. Mention the country but not the city, or the profession but not the speciality. A conversation loses nothing, and the mosaic never completes.
Separate your chat identity from the rest of your life
- Nickname. Use a name you do not use on any other service. The same handle on a chat room and on Instagram is a direct link between the two.
- E-mail. If you register an account, consider an address that does not contain your real name.
- Profile photo. A picture that already appears on your social media can be traced back with a reverse image search. A different photo, or an image that is not your face, cannot.
- Password. Use one that is not shared with any other site, so a problem in one place stays in one place.
What a photo gives away
Before sending a picture, look at it the way a stranger would. Backgrounds often contain a street name, a shop sign, a car number plate, a school logo on a child's uniform, a name on a parcel. Reflections in windows and glasses show more than people expect.
Photo files can also carry hidden information, including the exact place where the picture was taken, if location tagging is switched on in your camera. Many services remove this data when you upload, but you should not rely on it. You can turn off location for the camera app in your phone's settings, or send a screenshot of the photo instead of the original file.
Links are a two-way street
Opening a link tells the owner of that page your IP address, which usually reveals your country and often your city and internet provider. It can also open a page built to look like a login screen. Be selective about links from people you do not know, and never enter a password on a page you reached through a chat message.
The same applies in the other direction: sending someone a link to your own social media profile, your personal website or a shared photo album gives them everything that is on it.
Calls and cameras
On a video call, check what is behind you, and keep documents, post and screens out of view. On a voice call, background sounds such as station announcements can reveal where you are. Assume that anything shown on a call can be recorded by the other person, whatever the app says.
Other people's privacy counts too
Do not post another person's photo, phone number or private messages without their permission, even as a joke or to prove a point. Besides being against the rules of most chat rooms, it is the kind of act that tends to come back to the person who started it.
Settings worth knowing
Take two minutes to learn what your chat service lets you control. In Asal Chat, for example, you can block any user so they can no longer message you, limit who is allowed to open a private conversation with you, and decide what appears on your profile. Location is used only if you press the button that detects your city, and only the city name is kept. The details are in our privacy policy.
A two-minute privacy check
- Is my nickname different from my usernames elsewhere?
- Does my profile photo appear anywhere else on the internet?
- Have I mentioned both my city and my workplace or school?
- Is camera location tagging switched off on my phone?
- Would I be comfortable if everything I wrote this week were read by a colleague?
If the answers are comfortable, you are doing better than most people online. For the wider picture, including what to do when someone will not leave you alone, see the guides on staying safe in chat rooms and on dealing with harassment.