Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Your Neighbors Are My Spies: Location and other Privacy Concerns in
  Dating Apps   Trilateration has recently become one of the well-known threat models to the
user's location privacy in location-based applications (aka: location-based
services or LBS), especially those containing highly sensitive information such
as dating applications. The threat model mainly depends on the distance shown
from the targeted victim to the adversary to pinpoint the victim's position. As
a countermeasure, most of location-based applications have already implemented
the "hide distance" function to protect their user's location privacy. The
effectiveness of such approaches however is still questionable. Therefore, in
this paper, we first investigate how popular location-based dating applications
are currently protecting their user's privacy by testing the two most popular
GLBT-focused applications: Jack'd and Grindr.

37
The categories of this paper are: supr-con
36
The categories of this paper are: cmp-lg
24
The categories of this paper are: dg-ga
28
The categories of this paper are: alg-geom
15
The categories of this paper are: nucl-ex
33
The categories of this paper are: plasm-ph
2
The categories of this paper are: math
22
The categories of this paper are: chao-dyn
11
The categories of this paper are: hep-lat
7
The categories of this paper are: hep-th
4
The categories of this paper are: cond-mat
34
The categories of this paper are: chem-ph
6
The categories of this paper are: astro-ph
16
The categories of this paper are: stat
20
The categories of this paper are: acc-phys
25
The categories of this paper are: patt-sol