Hi, I discovered that Vopium (http://vopium.com/), a popular VoIP app for Android and iPhone, is simply leaking in *clear text* : - your login - your IMEI (unique ID of your phone) - your password (not even hashed !) - your geolocation - and all your contacts ! Just use wireshark on your network and put http as filter. See capture extract below : FIND_YOUR_USERNAME_HERE -> it will be your phone number Here the longitude, latitude, login and IMEI: GET /ge/index.php?ll=60.2345,9.1232&username=FIND_YOUR_USERNAME_HERE&imei=FIND_IMEI_HERE HTTP/1.1 Host: vopium.com User-Agent: Vopium3G/3.3 CFNetwork/548.0.4 Darwin/11.0.0 Accept: */* Accept-Language: en-us Accept-Encoding: gzip, deflate Cookie: __vc_lng=en [...] Here the login and password : POST /packagedetails.php?n=FIND_YOUR_USERNAME_HERE&p=FIND_YOUR_PASSWORD_HERE HTTP/1.1 Host: vopium.com User-Agent: Vopium3G/3.3 CFNetwork/548.0.4 Darwin/11.0.0 Content-Length: 0 Accept: */* Accept-Language: en-us Accept-Encoding: gzip, deflate [...] And another one : GET /j/checkbalance.htm?username=FIND_YOUR_USERNAME_HERE&password=FIND_YOUR_PASSWORD_HERE&amountonly=y HTTP/1.1 Host: vopium.com User-Agent: Vopium3G/3.3 CFNetwork/548.0.4 Darwin/11.0.0 Accept: */* Accept-Language: en-us Accept-Encoding: gzip, deflate [...] And all your contacts : POST /oauthserver/synchservice HTTP/1.1 [...] username=FIND_YOUR_USERNAME_HERE&password=FIND_YOUR_PASSWORD_HERE&type=set&usercontacts=FIND_ALL_YOUR_CONTACTS_DATA