CCS Concepts:  $\cdot$   General and reference  $\rightarrow$  Surveys and overviews ;  $\cdot$   Security and privacy  $\rightarrow$  Privacy-preserving protocols ; • Networks  $\rightarrow$  Network privacy and anonymity .

1 INTRODUCTION

2 OVERVIEW OF SENSITIVE PRIVACY IN EDGE CACHE

3 OVERVIEW OF ATTACK AND DEFENCE METHODS

4 ENHANCING USER PRIVACY IN EDGE CACHE

5 ENHANCING CONTENT PRIVACY IN EDGE CACHE

6 ENHANCING KNOWLEDGE PRIVACY IN EDGE CACHE

7 OPEN CHALLENGES AND FUTURE RESEARCH DIRECTIONS

8 CONCLUSION